adjective
Synonyms: simple 3, brainless, fatuous, foolish, mindless, silly, unwitty, weak-headed, weak-minded, witless
Related Word: puerile; absurd, irrational, unreasonable
Contrasted words: prudent, sage, sane, sapient, wise; clever, intelligent, knowing, smart; rational, reasonable
Antonyms: judicious, sensible