| Main Entry: | |
| Part of Speech: | adjective |
| Definition: | given to sudden behavior change |
| Synonyms: | any way the wind blows, arbitrary, blowing hot and cold, careless, changeful, contrary, crotchety, effervescent, erratic, every which way, fanciful, fickle, fitful, flaky*, flighty, freakish, gaga, helter-skelter, humorsome, impulsive, inconstant, kinky*, lubricious, mercurial, moody, mutable, notional, odd, picky*, punchy, queer, quirky, temperamental, ticklish, unpredictable, unreasonable, unstable, up and down, vagarious, variable, volatile, wayward, whimsical, yo-yo |
| Antonyms: | constant, dependable, sensible, staid, steadfast, steady |
| Main Entry: | irregular |
| Part of Speech: | adjective |
| Definition: | random, variable |
| Synonyms: | aberrant, aimless, capricious, casual, changeable, designless, desultory, disconnected, discontinuous, eccentric, erratic, faltering, fitful, fluctuating, fragmentary, haphazard, hit-or-miss, inconstant, indiscriminate, infrequent, intermittent, jerky, nonuniform, occasional, out of order, patchy, purposeless, recurrent, shaky, shifting, spasmodic, sporadic, uncertain, unconsidered, uneven, unmethodical, unpunctual, unreliable, unsettled, unsteady, unsystematic, up and down, weaving |
| Antonyms: | conventional, methodical, regular, systematic |
| Main Entry: | mercurial |
| Part of Speech: | adjective |
| Definition: | flighty, temperamental |
| Synonyms: | blowing hot and cold, bubbleheaded, buoyant, capricious, changeable, effervescent, elastic, erratic, expansive, fickle, flaky, flip*, fluctuating, gaga, gay, impulsive, inconstant, irregular, irrepressible, lighthearted, lively, lubricious, mad, mobile, movable, quicksilver, resilient, short-fuse, spirited, sprightly, ticklish, unpredictable, unstable, up-and-down, variable, volatile, yo-yo |
| Antonyms: | calm, tranquil, unchangeable, unperturbable, unvarying |
| Main Entry: | plumb |
| Part of Speech: | adjective |
| Definition: | vertical |
| Synonyms: | erect, perpendicular, sheer, straight, straight up, up and down, upright |
| Antonyms: | flat, horizontal, level |
| Main Entry: | thoroughly |
| Part of Speech: | adverb |
| Definition: | exhaustively |
| Synonyms: | all, assiduously, carefully, completely, comprehensively, conscientiously, earnestly, efficiently, exceedingly, exceptionally, extremely, flat out, from A to Z, from top to bottom, fully, hard, highly, hugely, in and out, in detail, inside out, intensely, intensively, meticulously, notably, painstakingly, remarkably, scrupulously, strikingly, sweepingly, through and through, throughout, unremittingly, up and down, very, whole hog, wholly |
| Antonyms: | incompletely, inexhaustively, partially, superficially |
| Main Entry: | throughout |
| Part of Speech: | adjective |
| Definition: | during the whole of |
| Synonyms: | all over, all the time, all through, around, at full length, completely, during, every bit, everyplace, everywhere, far and near, far and wide, for the duration, from beginning to end, from end to end, from one end to the other, from start to finish, from the start, from the word go, high and low, in all respects, in every place, in everything, inside and out, on all accounts, over, overall, right through, round, the whole time, through the whole of, to the end, up and down |
| Main Entry: | vertical |
| Part of Speech: | adjective |
| Definition: | upright |
| Synonyms: | bolt upright, cocked, erect, on end, perpendicular, plumb, sheer, steep, straight-up, up-and-down, upward |
| Antonyms: | horizontal, prone |
| Main Entry: | volatile |
| Part of Speech: | adjective |
| Definition: | explosive, changeable |
| Synonyms: | airy, buoyant, capricious, effervescent, elastic, elusive, ephemeral, erratic, expansive, fickle, fleeting, flighty, flippant, frivolous, fugacious, fugitive, gaseous, gay, giddy, impermanent, imponderable, inconsistent, inconstant, light, lively, lubricious, mercurial, momentary, playful, resilient, short-lived, sprightly, subtle, temperamental, ticklish, transient, transitory, unsettled, unstable, unsteady, up-and-down, vaporous, variable, whimsical |
| Antonyms: | calm, firm, stable, steadfast |
| Main Entry: | wanton |
| Part of Speech: | adjective |
| Definition: | careless |
| Synonyms: | capricious, changeable, devil-may-care, extravagant, fanciful, fickle, fitful, fluctuating, free, frivolous, heedless, hot and cold, immoderate, inconstant, intemperate, lavish, outrageous, prodigal, profuse, rash, reckless, spendthrift, spoiled, thriftless, unfettered, unreserved, unrestrained, up and down, variable, volatile, wasteful, whimsical, wild |
| Antonyms: | careful, observant, thoughtful, wise |