decrease

Decrease means to lower or go down. If you are driving above the speed limit, you should decrease your speed or risk getting a ticket. Students always want teachers to decrease the amount of homework.

The opposite of decrease is increase, which means to raise. In science, you often are measuring increases and decreases. Is there a decrease in the time it takes water to boil when you begin with water as a liquid rather than water in its ice-cube form?

DEFINITIONS OF: decrease

1

n a change downward

“there was a decrease in his temperature as the fever subsided”
Synonyms:
drop-off, lessening
Antonyms:
increase
a change resulting in an increase
Types:
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shrinkage, shrinking
process or result of becoming less or smaller
casualty
a decrease of military personnel or equipment
sinking
a slow fall or decline (as for lack of strength)
attrition
a wearing down to weaken or destroy
dwindling, dwindling away
a becoming gradually less
waning
a gradual decrease in magnitude or extent
compression, condensation, contraction
the process or result of becoming smaller or pressed together
damage, equipment casualty
loss of military equipment
loss, personnel casualty
military personnel lost by death or capture
fading away
gradually diminishing in brightness or loudness or strength
Type of:
alteration, change, modification
an event that occurs when something passes from one state or phase to another

n a process of becoming smaller or shorter

Synonyms:
decrement
Antonyms:
growth, increase, increment
a process of becoming larger or longer or more numerous or more important
Types:
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decay, decline
a gradual decrease; as of stored charge or current
decline, diminution
change toward something smaller or lower
desensitisation, desensitization
the process of reducing sensitivity
narrowing
a decrease in width
slippage
a decrease of transmitted power in a mechanical system caused by slipping
wastage
the process of wasting
declension, decline in quality, deterioration, worsening
process of changing to an inferior state
detumescence
diminution of swelling; the subsidence of anything swollen
ebb, ebbing, wane
a gradual decline (in size or strength or power or number)
erosion
a gradual decline of something
exponential decay, exponential return
a decrease that follows an exponential function
loss
gradual decline in amount or activity
nosedive
a sudden sharp drop or rapid decline
sinking spell
a temporary decline in health or value
slippage
decline from a standard level of performance or achievement
Type of:
physical process, process
a sustained phenomenon or one marked by gradual changes through a series of states

n the amount by which something decreases

Synonyms:
decrement
Antonyms:
increase, increment
the amount by which something increases
Types:
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dip, drop, fall, free fall
a sudden sharp decrease in some quantity
shrinkage
the amount by which something shrinks
correction
a drop in stock market activity or stock prices following a period of increases
voltage drop
a decrease in voltage along a conductor through which current is flowing
Type of:
amount
the relative magnitude of something with reference to a criterion

n the act of decreasing or reducing something

Synonyms:
diminution, reduction, step-down
Antonyms:
increase, step-up
the act of increasing something
Types:
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cut
the act of reducing the amount or number
mitigation, moderation
the action of lessening in severity or intensity
lowering
the act of causing to become less
cutback
a reduction in quantity or rate
devaluation
the reduction of something's value or worth
devitalisation, devitalization
the act of reducing the vitality of something
extenuation, mitigation, palliation
to act in such a way as to cause an offense to seem less serious
alleviation, easement, easing, relief
the act of reducing something unpleasant (as pain or annoyance)
de-escalation
(war) a reduction in intensity (of a crisis or a war)
minimisation, minimization
the act of reducing something to the least possible amount or degree or position
depletion
the act of decreasing something markedly
shortening
act of decreasing in length
shrinking
the act of becoming less
deduction, subtraction
the act of subtracting (removing a part from the whole)
deflation
the act of letting the air out of something
deduction, discount, price reduction
the act of reducing the selling price of merchandise
rollback
reducing prices back to some earlier level
weakening
the act of reducing the strength of something
depreciation
a decrease in price or value
contraction
the act of decreasing (something) in size or volume or quantity or scope
reverse split, reverse stock split, split down
a decrease in the number of outstanding shares of a corporation without changing the shareholders' equity
amortisation, amortization
the reduction of the value of an asset by prorating its cost over a period of years
declassification
reduction or removal by the government of restrictions on a classified document or weapon
shelter, tax shelter
a way of organizing business to reduce the taxes it must pay on current earnings
tax credit
a direct reduction in tax liability (not dependent on the taxpayer's tax bracket)
budget cut
the act of reducing budgeted expenditures
pay cut, salary cut
the act of reducing a salary
cost cutting
the act of cutting costs
price cut, price cutting
cutting the price of merchandise to one lower than the usual or advertised price
spending cut
the act of reducing spending
tax cut
the act of reducing taxation
tapering
the act of gradually lowering the size or amount
service cutback
the act of reducing service
evisceration
altering something (as a legislative act or a statement) in such a manner as to reduce its value
spasmolysis
the relaxation or relief of muscle spasms
detente
the easing of tensions or strained relations (especially between nations)
palliation
easing the severity of a pain or a disease without removing the cause
liberalisation, liberalization, relaxation
the act of making less strict
consumption, expenditure, using up
the act of consuming something
exhaustion
the act of exhausting something entirely
decompressing, decompression
relieving pressure (especially bringing a compressed person gradually back to atmospheric pressure)
abbreviation
shortening something by omitting parts of it
cut, cutting, cutting off
the act of shortening something by chopping off the ends
miniaturisation, miniaturization
act of making on a greatly reduced scale
bite
a portion removed from the whole
withholding
the act of deducting from an employee's salary
abatement
the act of abating
wilt, wilting
causing to become limp or drooping
dilution
weakening (reducing the concentration) by the addition of water or a thinner
etiolation
the act of weakening by stunting the growth or development of something
contraction, muscle contraction, muscular contraction
(physiology) a shortening or tensing of a part or organ (especially of a muscle or muscle fiber)
truncation
the act of cutting short
drain
a gradual depletion of energy or resources
tax avoidance
the minimization of tax liability by lawful methods
Type of:
change of magnitude
the act of changing the amount or size of something

v decrease in size, extent, or range

“The amount of homework decreased towards the end of the semester”
Synonyms:
diminish, fall, lessen
Antonyms:
increase
become bigger or greater in amount
Types:
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break
diminish or discontinue abruptly
shrink, shrivel
decrease in size, range, or extent
taper
diminish gradually
drop off
fall or diminish
fly, vanish, vaporize
decrease rapidly and disappear
break
fall sharply
ease off, ease up, flag, slacken off
become less intense
weaken
become weaker
boil down, concentrate, decoct, reduce
be cooked until very little liquid is left
contract, shrink
become smaller or draw together
shrink, shrivel, shrivel up, wither
wither, as with a loss of moisture
abate, die away, let up, slack, slack off
become less in amount or intensity
deflate
become deflated or flaccid, as by losing air
dwindle, dwindle away, dwindle down
become smaller or lose substance
remit
diminish or abate
de-escalate
diminish in size, scope, or intensity
depreciate, devaluate, devalue, undervalue
lose in value
shorten
become short or shorter
thin out
become sparser
decline, go down, wane
grow smaller
wane
decrease in phase
wane
become smaller
decelerate, retard, slow, slow down, slow up
lose velocity; move more slowly
decrescendo
grow quieter
atrophy
undergo atrophy
attenuate
become weaker, in strength, value, or magnitude
disappear, evaporate, melt
become less intense and fade away gradually
die down
become progressively weaker
collapse
lose significance, effectiveness, or value
fade, melt
become less clearly visible or distinguishable; disappear gradually or seemingly
lessen, subside
wear off or die down
blast
shrivel or wither or mature imperfectly
die back, die down
suffer from a disease that kills shoots
dry up, mummify
dry up and shrivel due to complete loss of moisture
blur, dim, slur
become vague or indistinct
languish, pine away, waste
lose vigor, health, or flesh, as through grief
dull
make less lively or vigorous
pall
lose strength or effectiveness; become or appear boring, insipid, or tiresome (to)
loose, loosen, relax
become loose or looser or less tight
slacken
become looser or slack
dip
go down momentarily
wear on
pass slowly (of time)
drop
go down in value
slack, slacken, slow, slow down, slow up
become slow or slower
slow, slow down, slow up
cause to proceed more slowly
delay, detain, hold up
cause to be slowed down or delayed
wilt
lose strength
flex
contract
Type of:
change magnitude
change in size or magnitude

v make smaller

“He decreased his staff”
Synonyms:
lessen, minify
Antonyms:
increase
make bigger or more
Types:
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suppress
reduce the incidence or severity of or stop
mitigate
make less severe or harsh
pare, pare down
decrease gradually or bit by bit
circumscribe, confine, limit
restrict or confine, "I limit you to two visits to the pub a day"
boil down, concentrate, reduce
cook until very little liquid is left
reduce, shrink
reduce in size; reduce physically
abbreviate, abridge, contract, cut, foreshorten, reduce, shorten
reduce in scope while retaining essential elements
abate, slack, slake
make less active or intense
lour, lower, turn down
make lower or quieter
de-escalate, step down, weaken
reduce the level or intensity or size or scope of
minimise, minimize
make small or insignificant
bring down, cut, cut back, cut down, reduce, trim, trim back, trim down
cut down on; make a reduction in
cut
have a reducing effect
relax, slack, slack up, slacken
make less active or fast
belittle, diminish
lessen the authority, dignity, or reputation of
lighten, relieve
alleviate or remove (pressure or stress) or make less oppressive
bowdlerise, bowdlerize, castrate, expurgate, shorten
edit by omitting or modifying parts considered indelicate
hold down
restrain
keep down, number
place a limit on the number of
cap
restrict the number or amount of
curb, curtail, cut back, restrict
place restrictions on
reduce, scale down
make smaller
reef
reduce (a sail) by taking in a reef
miniaturise, miniaturize
design or construct on a smaller scale
concentrate, condense, digest
make more concise
shorten
make shorter than originally intended; reduce or retrench in length or duration
hedge
minimize loss or risk
spill
reduce the pressure of wind on (a sail)
quench
reduce the degree of (luminescence or phosphorescence) in (excited molecules or a material) by adding a suitable substance
retrench
make a reduction, as in one's workforce
slash
cut drastically
thin out
make sparse
thin
make thin or thinner
depopulate, desolate
reduce in population
detract, take away
take away a part from; diminish
deflate
reduce or cut back the amount or availability of, creating a decline in value or prices
inflate
increase the amount or availability of, creating a rise in value
downsize
reduce in size or number
downsize
make in a smaller size
subtract
take off or away
delimit, delimitate, demarcate
set, mark, or draw the boundaries of something
content
satisfy in a limited way
contract
make smaller
ration
restrict the consumption of a relatively scarce commodity, as during war
knock off, shave
cut the price of
Type of:
alter, change, modify
cause to change; make different; cause a transformation

WORD FORMS

v
lessen in size, extent, or range
1 decrease
n
a change downward
2 decrease
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