Origin: 1350–1400; Middle English irascibel <
Late Latin īrāscibilis, equivalent to
Latin īrāsc- (stem of
īrāscī to grow angry; equivalent to
īr(
a)
ire +
-ā- theme vowel +
-sc- inchoative suffix +
-ī infinitive ending;
see -esce) +
-ibilis -ible Related formsi·ras·ci·bil·i·ty, i·ras·ci·ble·ness, noun
i·ras·ci·bly, adverb
un·i·ras·ci·bil·i·ty, noun
un·i·ras·ci·ble, adjective
Synonyms 1, 2. testy, touchy, peppery, choleric, short-tempered.
See irritable. Antonyms
1, 2. calm, even-tempered.