Pocket Thesaurus
Antonyms of mercurial
impulsive, unpredictable, volatile, effervescent, changeable, resilient, erratic, buoyant, capricious, elastic, expansive, fickle, flaky, flip, gay, inconstant, irregular, irrepressible, lighthearted, lively, mad, mobile, movable, spirited, sprightly, ticklish, unstable, up-and-down, variable, gaga, lubricious, blowing hot and cold, fluctuating, quicksilver, short-fuse, yo-yo
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