adjective
Synonyms: illogical , fallacious, invalid, mad, nonrational, reasonless, sophistic, unreasonable, unreasoned
Related Word: crazy, demented, insane
Contrasted words: logical, reasonable, sensible
Antonyms: rational
adjective
Synonyms: illogical , fallacious, invalid, mad, nonrational, reasonless, sophistic, unreasonable, unreasoned
Related Word: crazy, demented, insane
Contrasted words: logical, reasonable, sensible
Antonyms: rational
Merriam Webster. Collegiate thesaurus English vocabulary. Английский энциклопедический словарь тезаурус. 2003