adj. 25B6; adjective FICKLE, inconstant, mercurial, whimsical, capricious, skittish, volatile, impulsive; irresponsible, giddy, reckless, wild, careless, thoughtless.
steady, responsible.
FLIGHTY
Meaning of FLIGHTY in English
Concise Oxford thesaurus English vocabulary. Краткий оксфордский словарь английского языка тезаурус. 2012