| Main Entry: | |
| Part of Speech: | adjective |
| Definition: | immature |
| Synonyms: | arid, banal, barren, bland, childish, dull, empty, flat, inane, innocuous, insipid, juvenile, meager, sterile, trite, unexciting, vapid |
| Main Entry: | childish |
| Part of Speech: | adjective |
| Definition: | immature, silly |
| Synonyms: | adolescent, baby, babyish, callow, childlike, foolish, frivolous, green, infantile, infantine, innocent, jejune, juvenile, kid stuff, naive, puerile, unsophisticated, young, youthful |
| Notes: | childlike refers to a person's temperament, whereas childish refers to a person's behavior |
| Antonyms: | adult, mature, sensible, serious, wise |
| Main Entry: | dull |
| Part of Speech: | adjective |
| Definition: | insensitive |
| Synonyms: | accustomed, apathetic, blank, boring, callous, colorless, dead, depressed, empty, even, flat, heavy, impassible, inactive, indifferent, inert, insensible, jejune, languid, lifeless, listless, lumpy, monotonous, passionless, placid, prosaic, quiet, regular, routine, slack, slow, sluggish, spiritless, stagnant, still, stolid, torpid, unexciting, unresponsive, unsympathetic, usual, vacuous |
| Antonyms: | lively, quick, sensitive, vivacious |
| Main Entry: | dull |
| Part of Speech: | adjective |
| Definition: | boring, uninteresting |
| Synonyms: | abused, archaic, arid, big yawn, blah, colorless, common, commonplace, dead, dismal, dreary, driveling, dry, familiar, flat, hackneyed, heavy, ho hum, hoary, humdrum*, insipid, jejune, longwinded, monotonous, oft-repeated, ordinary, out-of-date, plain, pointless, prolix, prosaic, prosy, repetitious, repetitive, routine, run-of-the-mill, soporific, stale, stock, stupid, tame, tedious, tired, tiresome, trite, unimaginative, uninspiring, usual, usual thing, vapid, worn-out |
| Antonyms: | active, exciting, interesting, lively |
| 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: | flat |
| Part of Speech: | adjective |
| Definition: | dull, lackluster to the senses |
| Synonyms: | banal, blah, bland, blind, boring, colorless, dead, dim, drab, draggy, flavorless, ho hum, inane, innocuous, insipid, jejune, lead balloon, lifeless, matte, monotonous, muted, pointless, prosaic, prosy, sapless, spiritless, stale, tasteless, tedious, uninteresting, unpalatable, unsavory, unseasoned, vanilla, vapid, watery, weak, whitebread |
| Antonyms: | bubbly, effervescent, sharp |
| Main Entry: | immature |
| Part of Speech: | adjective |
| Definition: | young, inexperienced |
| Synonyms: | adolescent, baby, babyish, callow, childish, crude, green*, half-grown, imperfect, infantile, infantine, jejune, juvenile, kid, kidstuff, premature, puerile, raw, sophomoric, tender*, tenderfoot, underdeveloped, undergrown, undeveloped, unfinished, unfledged, unformed, unripe, unseasonable, unseasoned, unsophisticated, untimely, wet behind ears, youthful |
| Antonyms: | adult, developed, experienced, grown, mature, old |
| 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 |
| Notes: | inane means silly, lacking significance or insubstantial; insane means mentally deranged, mad or very foolish |
| Antonyms: | bright, intelligent, smart |
| Main Entry: | inapt |
| Part of Speech: | adjective |
| Definition: | incompetent; not suitable |
| Synonyms: | awkward, banal, clumsy, dull, flat, gauche, ill-adapted, ill-fitted, ill-suited, improper, inadept, inapposite, inappropriate, incongruous, inept, inexperienced, inexpert, infelicitous, insipid, jejune, maladroit, malapropos, slow, stupid, unable, undexterous, unfacile, unfit, unhandy, unmeet, unproficient, unskilled, unsuitable, unsuited, untimely |
| Notes: | inapt is 'not suitable or appropriate' while unapt is 'not likely or inclined' |
| Antonyms: | apt, competent, happy, suitable, suited |