irascible
Concise Oxford English Dictionary © 2008 Oxford University Press:
irascible /ɪˈrasɪb(ə)l/
▶adjective hot-tempered; irritable.
– derivatives
irascibility noun,
irascibly adverb.
irascibility noun,
irascibly adverb.
– origin ME: via Fr. from late L. irascibilis, from L. irasci ‘grow angry’, from ira ‘anger’.
'irascible' also found in these Oxford entries:

