irrational

Definition of irrational

Adjectives

not consistent with or using reason
"irrational fears"
"irrational animals"
Synonyms:
incoherent
without logical or meaningful connection
illogical, unlogical
lacking in correct logical relation
unreasonable
not reasonable; not showing good judgment
blind, unreasoning
not based on reason or evidence
reasonless
not endowed with the capacity to reason
nonrational
not based on reason
superstitious
showing ignorance of the laws of nature and faith in magic or chance
Antonyms:
rational
consistent with or based on or using reason
logical
capable of or reflecting the capability for correct and valid reasoning
reasonable, sensible
showing reason or sound judgment
sane
mentally healthy; free from mental disorder
coherent, lucid
capable of thinking and expressing yourself in a clear and consistent manner
demythologised, demythologized
having mythical elements removed
intelligent, reasoning, thinking
endowed with the capacity to reason
show more antonyms...
real but not expressible as the quotient of two integers
"irrational numbers"
Antonyms:
rational
capable of being expressed as a quotient of integers

Nouns

a real number that cannot be expressed as a rational number
Synonyms:
irrational number
Types:
show 4 types...
hide 4 types...
transcendental number
an irrational number that is not algebraic
pi
the ratio of the circumference to the diameter of a circle; approximately equal to 3.14159265358979323846...
e
the base of the natural system of logarithms; approximately equal to 2.718282...
algebraic number
root of an algebraic equation with rational coefficients
Type of:
real, real number
any rational or irrational number

Vocabulary Lists for irrational

Charlotte Bronte's "Jane Eyre" Chapters 1-10 »(412 words)
Vocabulary study list for Charlotte Bronte's "Jane...
  • habituate
  • neutralised
  • coherently
  • corrode
  • predispose

Jon Krakauer's Into Thin Air »(96 words)
Some SAT Vocabulary words from Jon Krakauer's Into Thin...
  • abbreviate
  • catharsis
  • unconstrained
  • devastate
  • problematic

feelings »(5461 words)
open
  • happy
  • alive
  • good
  • understanding
  • great

  • matzah
  • Sturmabteilung
  • concentration camp
  • Hakenkreuz
  • antisemitic

GMAT wordlist »(433 words)
  • earthy
  • ebullience
  • eccentric
  • ecclesiastic
  • eclectic

Virginia Woolf's "A Room of One's Own" »(343 words)
Vocabulary study list for Virginia Woolf's "A Room of...
  • truncate
  • hortatory
  • misogynist
  • intensification
  • avuncular

Words that contain irrational