Pronunciation: (ī'rish),[key] —adj. of, pertaining to, or characteristic of Ireland, its inhabitants, or their language.
—n. 1. the inhabitants of Ireland and their descendants elsewhere.
2. the aboriginal Celtic-speaking people of Ireland.
3. Also calledIrish Gaelic. the Celtic language of Ireland in its historical or modern form. Abbr.: Ir, Ir. Cf. Middle Irish, Old Irish. 4. See Irish English. 5. See Irish whiskey. 6. get one's Irish up,Informal.to become angry or outraged: Don't go getting your Irish up over a little matter like that.