ETYM Latin iratus, from irasci to be angry. Related to Ire.
Feeling or showing extreme anger; SYN. ireful.
ETYM Latin lividus, from livere to be of a blush color, to be black and blue: cf. French livide.
1. (Informal) Furiously angry.
2. (Of a light) Imparting a deathlike luminosity.