The definition of temperamental is someone or something that is prone to wild swings of emotion or that does not behave or work reliably. A car engine that is temperamental is one that doesn't start reliably or that starts only under certain conditions.

Can a thing be temperamental?

The adjective temperamental can also be used to describe objects that behave unpredictably. A temperamental air conditioner can make for a long, hot summer. Fortunately, you're not temperamental or you might have smashed it to bits by now.

What is the synonym of temperamental?

In this page you can discover 40 synonyms, antonyms, idiomatic expressions, and related words for temperamental, like: moody, sensitive, volatile, excitable, undependable, unstable, touchy, peaceful, happy, irritable and emotional.