| Main Entry: | |
| Part of Speech: | adjective |
| Definition: | foolish |
| Synonyms: | absurd, asinine, brainless, cockamamie, crazy, daffy, daft, dippy, doltish, dotty, fantastic, fatuous, feebleminded, half-baked, half-witted, harebrained, idiotic, ill-advised, ill-considered, imprudent, incautious, indiscreet, injudicious, insane, irrational, jerky, kooky, loony, ludicrous, lunatic, mad, moronic, nerdy, nonsensical, nutty, preposterous, ridiculous, senseless, short-sighted, silly, simple, softheaded, stupid, tomfool, unearthly, unintelligent, unreasonable, unwise, wacky*, weak, witless, zany* |
| Main Entry: | dull |
| Part of Speech: | adjective |
| Definition: | unintelligent |
| Synonyms: | addled, backward, besotted, boring, brainless, daffy, daft, dense, dim, dim-witted, doltish, dumb, feeble-minded, half-baked, ignorant, imbecilic, indolent, insensate, low, moronic, not bright, numskulled, obtuse, scatterbrained, shallow, simple, simple-minded, slow, sluggish, stolid, stupid, tedious, thick, unintellectual, vacuous, wearisome, witless |
| Antonyms: | intelligent, keen, sharp, smart, witty |
| Main Entry: | feebleminded |
| Part of Speech: | adjective |
| Definition: | mentally handicapped |
| Synonyms: | dim-witted, dull-witted, dumb, half-witted, imbecilic, moronic, retarded, simple, slow, soft in the head, stupid, unintelligent, weak-minded |
| Main Entry: | foolish |
| Part of Speech: | adjective |
| Definition: | nonsensical, idiotic |
| Synonyms: | absurd, asinine, brainless, cockamamy, crazy, daffy, daft, dippy, doltish, dotty, fantastic, fatuous, feebleminded, half-baked, half-witted, harebrained, ill-advised, ill-considered, imbecilic, imprudent, incautious, indiscreet, injudicious, insane, irrational, jerky, kooky, loony, ludicrous, lunatic, mad, moronic, nerdy, nutty, preposterous, ridiculous, senseless, short-sighted, silly, simple, stupid, unintelligent, unreasonable, unwise, wacky*, weak, witless, zany* |
| Antonyms: | careful, cautious, circumspect, prudent, sensible, serious, thoughtful, unfoolish, wise |
| Main Entry: | half-baked |
| Part of Speech: | adjective |
| Definition: | stupid; not thought through |
| Synonyms: | backward, batty, birdbrained, blockheaded, boneheaded, brainless, crazy, dumb, feeble-minded, foolish, harebrained, idiotic, ignorant, ill-conceived, imbecilic, impractical, indiscreet, moronic, poorly planned, retarded, senseless, short-sighted, silly, slow, sophomoric, underdeveloped, unformed, witless |
| Antonyms: | intelligent, smart, thoughtful, wise |
| Main Entry: | idiotic |
| Part of Speech: | adjective |
| Definition: | very stupid |
| Synonyms: | asinine, batty, birdbrained, crazy, daffy, daft, dull, dumb, fatuous, foolhardy, foolish, harebrained, imbecile, imbecilic, inane, insane, lunatic, moronic, senseless, silly, squirrelly, thick-witted, unintelligent |
| Antonyms: | brainy, intelligent, smart |
| Main Entry: | ignorant |
| Part of Speech: | adjective |
| Definition: | unaware, unknowing |
| Synonyms: | apprenticed, benighted, birdbrained, blind to, cretinous, dense, green*, illiterate, imbecilic, in the dark, inexperienced, innocent, insensible, mindless, misinformed, moronic, naive, nescient, oblivious, obtuse, shallow, thick, unconscious, unconversant, uncultivated, uncultured, uneducated, unenlightened, uninformed, uninitiated, unintellectual, unknowledgeable, unlearned, unlettered, unmindful, unread, unschooled, unsuspecting, untaught, untrained, unwitting, witless |
| Notes: | stupid refers to lack of ability while ignorant refers to lack of knowledge |
| Antonyms: | aware, competent, educated, intelligent, knowledgeable, literate, talented, wise |
| Main Entry: | imbecile |
| Part of Speech: | adjective |
| Definition: | stupid, foolish |
| Synonyms: | asinine, backward, deranged, dim-witted, dull, fatuous, feeble-minded, idiotic, imbecilic, inane, ludicrous, moronic, simple, simple-minded, slow, thick, witless |
| Antonyms: | brainy, intelligent, smart |
| Main Entry: | inane |
| 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 |
| Antonyms: | bright, intelligent, smart |