- The definition of irate is being extremely angry.
An example of someone who is irate is a person who just found out that her entire project was destroyed overnight.
A man gets irate at his computer.
Origin of irateClassical Latin iratus ; from irasci, to be angry ; from ira, ire
Origin of irateLatin īrātus, past participle of īrāscī, to be angry, from īra, anger; see eis- in Indo-European roots.