| Main Entry: | |
| 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: | blind |
| Part of Speech: | adjective |
| Definition: | indifferent |
| Synonyms: | careless, heedless, ignorant, imperceptive, inattentive, inconsiderate, indiscriminate, injudicious, insensitive, myopic, nearsighted, neglectful, oblivious, thoughtless, unaware, unconscious, undiscerning, unmindful, unobservant, unperceiving, unreasoning, unseeing |
| Antonyms: | aware, cunning, quick, sharp, understanding |
| Main Entry: | crude |
| Part of Speech: | adjective |
| Definition: | vulgar, unpolished in manner |
| Synonyms: | awkward, backward, barnyard, boorish, cheap, cloddish, clumsy, coarse, crass, dirty, earthy, filthy, foul, grody, gross*, ignorant, ill-bred, indecent, indelicate, inelegant, insensible, lewd, loud, loud-mouthed, loutish, lowbred, oafish, obscene, raunchy*, raw, rough, rude, savage, smutty, tacky*, tactless, uncouth, unenlightened, ungainly, unskillful |
| Antonyms: | gentle, nice, polished, refined, tasteful |
| Main Entry: | dense |
| Part of Speech: | adjective |
| Definition: | slow, stupid |
| Synonyms: | blockheaded, boorish, doltish, dull, dumb, fatheaded, ignorant, imbecilic, impassive, lethargic, numskulled, oafish, obtuse, phlegmatic, simple, slow-witted, sluggish, stolid, thick, torpid |
| Antonyms: | brainy, clever, intelligent, 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 |
| 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 |
| Main Entry: | fallible |
| Part of Speech: | adjective |
| Definition: | able or prone to err |
| Synonyms: | careless, deceptive, errable, errant, erring, faulty, frail, heedless, human, ignorant, imperfect, in question, liable, mortal, questionable, uncertain, unreliable, untrustworthy, weak |
| Antonyms: | certain, correct, definite, infallible, perfect, reliable, strong, sure, unerring |
| Main Entry: | gauche |
| Part of Speech: | adjective |
| Definition: | tactless, unsophisticated |
| Synonyms: | awkward, bumbling, clumsy, crude, graceless, green, halting, ham-handed, heavy-handed, ignorant, ill-bred, ill-mannered, inelegant, inept, insensitive, lacking, maladroit, oafish, uncouth, uncultured, unhappy, unpolished, wooden |
| Antonyms: | elegant, graceful, mannerly, polished, refined, sophisticated, tactful, tasteful |