Synonyms of unreasoning

unreasoning

adjective

ˌən-ˈrēz-niŋ

as in irrational

not using or following good reasoning

an unreasoning argument based on some false assumptions

Synonyms & Similar Words

• irrational
• unreasonable
• unreasoned
• illegitimate
• weak
• misleading
• illogical
• foolish
• nonrational
• absurd
• fallacious
• inconsequent
• silly
• invalid
• meaningless
• inconsequential
• unsound
• weird
• unusual
• inconsistent
• strange
• odd
• sophistic
• misguided
• specious
• insane
• unconsidered
• random
• reasonless
• nonsensical
• eristic
• asinine
• unaccountable
• inexplicable
• mad
• disordered
• surreal
• disorganized
• preposterous
• senseless
• ill-advised
• unexplainable
• unconvincing
• nutty
• half-baked
• wacky
• peculiar
• rambling
• Kafkaesque

Antonyms & Near Antonyms

• rational
• reasonable
• logical
• sound
• valid
• sensible
• wise
• sane
• justified
• well-founded
• reasoned
• sober
• well-grounded
• enlightened
• commonsense
• just
• informed
• certain
• compelling
• plausible
• persuasive
• clear
• organized
• convincing
• solid
• true
• credible
• cogent
• ordered
• sure
• satisfying
• demonstrated
• confirmed
• established
• validated
• substantiated
• corroborated

Example Sentences

Recent Examples of unreasoning

Bainbridge knew about secrets and unreasoning shame. — Christopher Tayler, Harpers Magazine, 27 Jan. 2026

Let sound political prescience but take the place of an unreasoning prejudice, and this will be done. — Frederick Douglass, The Atlantic, 16 Aug. 2017

Roosevelt surely understood that nameless, unreasoning, unjustified fear cannot be eradicated. — New York Times, 9 June 2026