Main Entry:

tem·per·a·men·tal

Pronunciation:

\ˌtem-p(ə-)rə-ˈmen-t^əl, ˌtem-pər-ˈ\

Function:

adjective

Date:

1646

1: of, relating to, or arising from temperament : constitutional <temperamental peculiarities>2 a: marked by excessive sensitivity and impulsive mood changes <a temperamental child> b: unpredictable in behavior or performance <a temperamental computer>

— tem·per·a·men·tal·ly \-t^əl-ē\ adverb