| 例句 |
up in the airphrase likely to change frequently, suddenly, or unexpectedlyOur plans are still up in the air, but we're hoping to leave on Sunday. capricious, changeable, changeful, fickle, flickery, fluctuating, fluid, inconsistent, inconstant, mercurial, mutable, skittish, temperamental, uncertain, unpredictable, unsettled, unstable, unsteady, variable, volatile aimless, arbitrary, desultory, erratic, haphazard, hit-or-miss, irregular, random, scattered, slapdash, strayambivalent, hesitating, shaky, shilly-shally, shilly-shallying, vacillating, waveringdicey, undependable, unreliable, untrustworthyadaptable, mobile, protean, versatile certain, changeless, constant, immutable, invariable, predictable, settled, stable, stationary, steady, unchangeable, unchanging, unvarying equable, even, uniformabiding, durable, lasting, permanent, persistentdependable, reliable, sure, tried, tried-and-true, true, trustworthy, trusty |