Pronunciation: (tem"pur-u-men'tl, -pru-men'-, -pur-men'-), [key]
1. having or exhibiting a strongly marked, individual temperament.
2. moody, irritable, or sensitive: a temperamental artist.
3. given to erratic behavior; unpredictable.
4. of or pertaining to temperament; constitutional: temperamental differences.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.