constant

erratic, flighty, unaffectionate, lumpish, egoistical, irresolute, beguiling, delusory, overdetermined, nabokovian, fickle, etiolated, unpoetic, incommunicative, maladroit, undependable, indecisive, peevish, captious, phantasmal, flaky, unpredictable, unreflective, sapient, brusk, unmusical, antipathetic, changeless, protean, entropic, timorous, vivifying, uninflected, solipsistic, toneless, ungifted, obtuse, unspiritual, capricious, disharmonious, fuddled, scatty, jesuitical, inconsistent, antipodal, ineluctable, diffusive, unreciprocated, unassertive, mannerist, easeful, apparitional, ephemeral, snappish, monotonic, rebarbative, exasperating, overfamiliar, ingrown, prickly, temperamental, feckless, unfocussed, befuddled, tiresome, microtonal, contradictive, sesquipedalian, undynamic, malleable, harpy, intransitive, choleric, tempestuous, immutable, ludic, hermitic, affectless, peripatetic, maladapted, neurotic, mutable, quavery, libidinal, distractible, synchronic, ossifying, incorrigibly, hieratic, unsustained, ineradicable, invariable, fecund, oppositely, fleshly, prolix, fluttery, predictable, oracular, perfervid, unfocused, epicene, sensible, fond, impure, try, abridgement, arid, articulate, conjecture, contrary, controlling, count, deserving, despise, empirical, fletcher, hitherto, idea, immune, impatient, changeable, faithless, wayward, suspicious, timid, depraved, loving, amiable, freakish, saddened, sinful, tormented, trustful, unloving, credulous

chameleon, light-o'-love, light-of-love, versatile

false, fickle, untrue, volatile