active

Something that is active is characterized by movement and action. That action might be a random or temporary movement, such as someone who is active and exercises only now and then, or something continuous, like an active strain of a virus.

Since the adjective active suggests activity, applying it to anything implies some sort of motion or action. A person might be physically active, not sitting around and doing nothing, or mentally active, working the mind. In language, we refer to "the active voice" as one in which the subject does the action, in contrast to the passive voice, a rather boring style where the subject is the receiver of the action. Even in writing, it’s better to be active!

PRIMARY MEANINGS OF: active

1
adjn
characterized by energetic activity
a person who is a participating member of an organization
2
adjn
exerting influence or producing a change or effect
chemical agent capable of activity
3
adjn
(used of verbs (e.g. `to run') and participial adjectives (e.g. `running' in `running water')) expressing action rather than a state of being
the voice used to indicate that the grammatical subject of the verb is performing the action or causing the happening denoted by the verb
4
adj
full of activity or engaged in continuous activity
FULL DEFINITIONS OF: active
1

adj characterized by energetic activity

“an active toddler”
active as a gazelle”
“an active man is a man of action”
Synonyms
about, astir
on the move
acrobatic, athletic, gymnastic
vigorously active
agile, nimble, quick, spry
moving quickly and lightly
hot
marked by excited activity
hyperactive, overactive
more active than normal
on the go
(of a person) very busy and active
sporty
appropriate for sport or engagement in a sport
lively
full of life and energy
energetic
possessing or exerting or displaying energy
Antonyms:
inactive
not active physically or mentally
desk-bound, deskbound
restricted to working in an office rather than in an active physical capacity
abeyant, dormant
inactive but capable of becoming active
hypoactive, underactive
abnormally inactive
inert, sluggish, soggy, torpid
slow and apathetic
sedentary
requiring sitting or little activity
lethargic, unenrgetic
deficient in alertness or activity
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adj taking part in an activity

“an active member of the club”
“he was politically active
Synonyms:
participating
involved
connected by participation or association or use

adj engaged in or ready for military or naval operations

“on active duty”
Synonyms:
combat-ready, fighting
operational
(military) of or intended for or involved in military operations

adj engaged in full-time work

active duty”
“though past retirement age he is still active in his profession”
Synonyms
activated
(military) set up and placed on active assignment
Antonyms:
inactive
not engaged in full-time work
off
not performing or scheduled for duties
retired
no longer active in your work or profession
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adj (of the sun) characterized by an increased occurrence of sunspots and flares and radio emissions

Antonyms:
quiet
of the sun characterized by a low level of surface phenomena like sunspots e.g.

adj (of e.g. volcanos) capable of erupting

Synonyms
alive, live
capable of erupting
live
exerting force or containing energy
Antonyms:
extinct
(of e.g. volcanos) permanently inactive
dead
physically inactive
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adj (of e.g. volcanos) erupting or liable to erupt

active volcanos”
Synonyms
eruptive
actively spewing out lava
Antonyms:
dormant, inactive
(of e.g. volcanos) not erupting and not extinct
quiescent
being quiet or still or inactive
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n a person who is a participating member of an organization

“the club issues a list of members, both the actives and the retirees”
Type of:
individual, mortal, person, somebody, someone, soul
a human being
2

adj exerting influence or producing a change or effect

“an active ingredient”
Synonyms
activated
rendered active; e.g. rendered radioactive or luminescent or photosensitive or conductive
counteractive
opposing or neutralizing or mitigating an effect by contrary action
surface-active
capable of lowering the surface tension of a liquid; used especially of detergents
Antonyms:
inactive
not exerting influence or change
quiescent
not active or activated
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adj disposed to take action or effectuate change

“a director who takes an active interest in corporate operations”
“an active antagonism”
“he was active in drawing attention to their grievances”
Synonyms
activist, activistic
advocating or engaged in activism
hands-on
involving active participation
proactive
(of a policy or person or action) controlling a situation by causing something to happen rather than waiting to respond to it after it happens
Antonyms:
inactive, passive
lacking in energy or will
hands-off
not involving participation or intervention
resistless, supine, unresisting
offering no resistance
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adj tending to become more severe or wider in scope

active tuberculosis”
Synonyms
progressive
advancing in severity
Antonyms:
inactive
(pathology) not progressing or increasing; or progressing slowly
dead-end
lacking opportunities for development or advancement
flat
commercially inactive
indolent
(of tumors, e.g.) slow to heal or develop and usually painless
latent
(pathology) not presently active
quiescent
(pathology) causing no symptoms
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n chemical agent capable of activity

Synonyms:
active agent
Type of:
chemical agent
an agent that produces chemical reactions
3

adj (used of verbs (e.g. `to run') and participial adjectives (e.g. `running' in `running water')) expressing action rather than a state of being

Synonyms:
dynamic
Antonyms:
stative
( used of verbs (e.g. `be' or `own') and most participial adjectives) expressing existence or a state rather than an action

adj expressing that the subject of the sentence has the semantic function of actor: "Hemingway favors active constructions"

Antonyms:
passive
expressing that the subject of the sentence is the patient of the action denoted by the verb

n the voice used to indicate that the grammatical subject of the verb is performing the action or causing the happening denoted by the verb

“`The boy threw the ball' uses the active voice”
Synonyms:
active voice
Antonyms:
passive, passive voice
the voice used to indicate that the grammatical subject of the verb is the recipient (not the source) of the action denoted by the verb
Type of:
voice
(linguistics) the grammatical relation (active or passive) of the grammatical subject of a verb to the action that the verb denotes
4

adj full of activity or engaged in continuous activity

“an active seaport”
“an active bond market”
“an active account”
Synonyms
brisk
very active
bustling
full of energetic and noisy activity
busy
crowded with or characterized by much activity
going
in full operation
open
ready for business
springy
(of movements) light and confidently active
Antonyms:
inactive
lacking activity; lying idle or unused
dark
not giving performances; closed
dead
devoid of activity
dull, slow, sluggish
(of business) not active or brisk
idle, unused
not in active use
strikebound
closed or immobilized by a strike
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adj in operation

“an active tradition”
Synonyms:
alive
existent, existing
having existence or being or actuality
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