temperamental


tem·per·a·men·tal

adjective \ˌtem-p(ə-)rə-ˈmen-təl, ˌtem-pər-ˈ\

: likely to become upset or angry

: unpredictable in behavior or performance

: of or relating to someone's usual attitude, mood, or behavior

Full Definition of TEMPERAMENTAL

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 \-təl-ē\ adverb

Examples of TEMPERAMENTAL

  1. The actor is known for being temperamental.
  2. The old computer is temperamental.
  3. They divorced due to temperamental differences.

First Known Use of TEMPERAMENTAL

1646

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