| Main Entry: | |
| Part of Speech: | adjective |
| Definition: | stupid |
| Synonyms: | absurd, asinine, daft, empty, fatuous, flat, foolish, frivolous, futile, harebrained, idiotic, illogical, imbecilic, innocuous, insipid, jejune, laughable, meaningless, mindless, pointless, puerile, ridiculous, sappy*, senseless, silly, trifling, unintelligent, vacant, vacuous, vain, vapid, weak, wishy-washy, worthless |
| Notes: | inane means silly, lacking significance or insubstantial; insane means mentally deranged, mad or very foolish |
| Antonyms: | bright, intelligent, smart |
| Main Entry: | asinine |
| Part of Speech: | adjective |
| Definition: | senseless |
| Synonyms: | absurd, cretinous, daft, foolish, half-witted, idiotic, inane, moronic, silly, sophomoric, stupid |
| Main Entry: | blank |
| Part of Speech: | adjective |
| Definition: | expressionless |
| Synonyms: | deadpan, dull, empty, fruitless, hollow, immobile, impassive, inane, inexpressive, inscrutable, lifeless, masklike, meaningless, noncommittal, poker-faced, stiff, stupid, uncommunicative, unexpressive, vacant, vacuous, vague |
| Antonyms: | animated |
| Main Entry: | crazy |
| Part of Speech: | adjective |
| Definition: | unrealistic, fantastic |
| Synonyms: | absurd, balmy, beyond all reason, bizarre, cockeyed, derisory, eccentric, fatuous, foolhardy, foolish, goofy*, half-baked, harebrained, idiotic, ill-conceived, impracticable, imprudent, inane, inappropriate, insane, irresponsible, loony, ludicrous, nonsensical, odd, out of all reason, outrageous, peculiar, preposterous, puerile, quixotic, ridiculous, senseless, short-sighted, silly, strange, unworkable, weird, wild |
| Antonyms: | believeable, realistic, reasonable, sensible |
| Main Entry: | daft |
| Part of Speech: | adjective |
| Definition: | stupid; crazy |
| Synonyms: | absurd, asinine, bedlamite, bonkers, cracked, crackers, daffy, demented, deranged, dopey, flaky*, foolish, fried, giddy, half-baked, idiotic, in the ozone, inane, insane, lunatic, mad, mental*, nuts, nutty, off the wall, out of one's gourd, ridiculous, screwy, silly, simple, touched, unbalanced, unhinged, unsound, wacky, whacko, witless |
| Antonyms: | brainy, bright, intelligent, smart, understanding |
| Main Entry: | ditsy |
| Part of Speech: | adjective |
| Definition: | silly |
| Synonyms: | airbrained, airheaded, daffy, dippy, dipsy, dizzy*, dopey, eccentric, empty, giddy, goofy*, inane, kooky, rattlebrained, scatterbrained |
| Main Entry: | dizzy |
| Part of Speech: | adjective |
| Definition: | flighty, scatterbrained |
| Synonyms: | capricious, changeable, crazy, empty-headed, fatuous, feather-brained, fickle, foolish, frivolous, giddy, harebrained, heady, inane, light-headed, silly, skittish, unstable |
| Antonyms: | clear-thinking, sensible, smart |
| Main Entry: | empty |
| Part of Speech: | adjective |
| Definition: | fruitless, ineffective |
| Synonyms: | aimless, banal, barren, cheap, dead, deadpan, devoid, dishonest, dumb, expressionless, fatuous, flat, frivolous, futile, hollow, idle, ignorant, inane, ineffectual, inexpressive, insincere, insipid, jejune, meaningless, nugatory, otiose, paltry, petty, purposeless, senseless, silly, trivial, unintelligent, unreal, unsatisfactory, unsubstantial, vacuous, vain, valueless, vapid, worthless |
| Antonyms: | abundant, copious, effective, fruitful, productive, sufficient |
| Main Entry: | empty-headed |
| Part of Speech: | adjective |
| Definition: | flighty, scatterbrained |
| Synonyms: | brainless, dizzy, featherbrained, frivolous, giddy, harebrained, ignorant, illiterate, inane, know-nothing, silly, skittish, stupid, uneducated, unschooled, untaught, vacant, vacuous |
| Antonyms: | cognizant, intelligent, sensible, slick, smart |