adjective
- having or exhibiting a strongly marked, individual temperament.
- moody, irritable, or sensitive: a temperamental artist.
- given to erratic behavior; unpredictable.
- of or relating to temperament; constitutional: temperamental differences.
adjective
- easily upset or irritated; excitable; volatile
- of, relating to, or caused by temperament
- informal working erratically and inconsistently; unreliablea temperamental sewing machine
adj.“of or pertaining to temperament,” 1640s, from temperament; in the sense of “moody” it is recorded from 1907.