| Main Entry: | brainless |
| Part of Speech: | adjective |
| Definition: | idiotic |
Synonyms: |
anencephalic, anencephalous, dumb, foolish, imbecile, mindless, senseless, silly, stupid, thoughtless, witless |
Antonyms: |
smart |
| 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: | 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 |
| Main Entry: | fatuous |
| Part of Speech: | adjective |
| Definition: | stupid |
Synonyms: |
absurd, asinine, birdbrained, boneheaded, brainless, dense, dull, foolish, idiotic, imbecile, inane, insensate, jerky, lamebrained, ludicrous, lunatic, mad, mindless, moronic, puerile, sappy, silly, simple, vacuous, witless |
Antonyms: |
aware, bright, intelligent, keen, sensible, smart |
| 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: | giddy |
| Part of Speech: | adjective |
| Definition: | silly, impulsive |
Synonyms: |
bemused, brainless, bubbleheaded, capricious, careless, changeable, changeful, ditzy, dizzy, empty-headed, erratic, fickle, flighty, flustered, frivolous, gaga, heedless, inconstant, irresolute, irresponsible, lightheaded, punchy, reckless, reeling, scatterbrained, skittish, slaphappy, swimming*, thoughtless, unbalanced, unsettled, unstable, unsteady, vacillating, volatile, whimsical, whirling, wild, woozy |
Antonyms: |
calm, careful, level-headed, sensible, serious |
| 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: | irrational |
| Part of Speech: | adjective |
| Definition: | illogical, senseless |
Synonyms: |
aberrant, absurd, brainless, cockamamie, crazy, delirious, demented, disconnected, disjointed, distraught, fallacious, flaky*, foolish, freaky, incoherent, injudicious, insane, invalid, kooky, loony, mad, mindless, nonsensical, nutty, off-the-wall, preposterous, raving, reasonless, ridiculous, silly, sophistic, specious, stupid, unreasonable, unreasoning, unsound, unstable, unthinking, unwise, wacky*, wild, wrong |
Antonyms: |
logical, rational, reasonable, reflective, sensible, sound, stable |
| Main Entry: | moronic |
| Part of Speech: | adjective |
| Definition: | stupid |
Synonyms: |
asinine, brainless, dense, dimwitted, doltish, dopey, dumb, foolish, half-baked, idiotic, ill-advised, imbecilic, inane, irresponsible, ludicrous, mindless, nonsensical, pointless, senseless, unintelligent, unthinking |
| Main Entry: | silly |
| Part of Speech: | adjective |
| Definition: | absurd, giddy, foolish |
Synonyms: |
asinine, balmy, brainless, childish, crazy, dippy, dizzy*, empty, empty-headed, fatuous, featherbrained, flighty, foolhardy, frivolous, harebrained, idiotic, ignorant, illogical, immature, imprudent, inane, inappropriate, inconsistent, irrational, irresponsible, ludicrous, meaningless, muddle-headed, nitwitted, nonsensical, pointless, preposterous, puerile, ridiculous, senseless, sheepheaded, simple, simpleminded, stupid, unintelligent, unreasonable, unwise, vacuous, witless |
Antonyms: |
mature, mundane, practical, sensible, serious, wise |