Словарь синонимов английского языка - inconstant

(adj) changeable, mutable, fickle, capricious, mercurial, volatile, vacillating, unsteady, unsteadfast, irresolute, unreliable, undependable, fluctuating, wavering, erratic, inconsistent, flighty, unstable, unsettled, fitful, vague, indefinite, variable, moody: His supporters proved inconstant, and he fell from power. The inconstant wind blew their craft hither and thither.