Synonyms for (adjective) temperamental

Synonyms: temperamental, erratic

Definition: likely to perform unpredictably

Usage: erratic winds are the bane of a sailor; a temperamental motor; sometimes it would start and sometimes it wouldn't; that beautiful but temperamental instrument the flute- Osbert Lancaster

Similar words: undependable, unreliable

Definition: not worthy of reliance or trust

Usage: in the early 1950s computers were large and expensive and unreliable; an undependable assistant


Synonyms: moody, temperamental

Definition: subject to sharply varying moods

Usage: a temperamental opera singer

Similar words: emotional

Definition: of more than usual emotion

Usage: his behavior was highly emotional