Synonyms and Antonyms of nonrational
not using or following good reasoning
- was so upset that he was completely nonrational for a moment
fallacious, illegitimate, illogical, inconsequent, inconsequential, invalid, irrational, unreasonable, unreasoning, unsound, weak
eristic (also eristical), misleading, sophistic (or sophistical), specious
half-baked, ill-advised, misguided, unconsidered, unreasoned
inconsistent
absurd, asinine, foolish, meaningless, nonsensical, preposterous, reasonless, senseless, silly
Kafkaesque, odd, peculiar, strange, surreal, unusual, weird
insane, mad, nutty, wacky (also whacky)
disordered, disorganized, rambling, random
unconvincing
inexplicable, unaccountable, unexplainable
commonsense, sane, sensible, sober, wise
enlightened, informed, just, justified, reasoned
ordered, organized
clear, cogent, compelling, convincing, credible, persuasive, plausible, satisfying, solid
certain, sure, true
confirmed, corroborated, demonstrated, established, substantiated, validated