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English definition of “temperamental”

temperamental

adjective (MACHINE)    /ˌtem.pər.əˈmen.təl/ /-prə-/ US  /-pɚ.əˈmen.t̬əl/ informal
describes a machine that sometimes works and sometimes does not: You have to treat our DVD player very carefully - it's rather temperamental.Not functioning
(Definition of temperamental adjective (MACHINE) from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)
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