say it: tem-pruh-MEN-tuhl
temperamental is an adjective meaning "relating to or caused by temperament". It carries 3 recorded senses.
relating to or caused by temperament
“temperamental indifference to neatness”
“temperamental peculiarities”
likely to perform unpredictably
“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”
Definitions, synonyms and semantic relations for temperamental come from Princeton University’s WordNet. The pronunciation comes from the CMU Pronouncing Dictionary. Commonness is measured against a corpus of everyday English. Full sources and licences.