mercurial Definition

erratic, quicksilver, fickle, changeable, changeful, moody, quirky, lunatic, inunction, temperamental, tempestuous, flamboyant, impetuous, unpredictable, fiery, headstrong, imperious, precocious, deft, flighty, enigmatic, idiosyncratic, charismatic, loquacious, irrepressible, wily, pugnacious, talismanic, petulant, irascible, eccentric, voluble, peerless, mercurialize, brash, garrulous, shrewd, unflappable, hotheaded, canny, protean, diminutive, truculent, feisty, prodigal, affable, peripatetic, imperturbable, rangy, mesmeric, coltish, mercurialist, taciturn, crafty, domineering, streaky, prickly, ferocious, swashbuckling, excitable, chameleonic, diffident, callow, maladroit, fearsome, wayward, buccaneering, roguish, lanky, combative, intramercurial, astute, languid, masterful, bombastic, mesmerizing, gregarious, sublime, iconoclastic, prodigious, tumultuous, unassertive, egotistical, fearless, skilful, beguiling, inscrutable, genial, cocksure, gifted, cagey, nerveless, impish, dazzling, masterly, effervescent, fractious, ruthless, stakhanovite, unforthcoming,