irritated vs annoyed

irritated and annoyed both are adjectives.

Word	Noun	Adjective	Verb	Adverb
irritated	No	Yes	No	No
annoyed	No	Yes	No	No

As adjectives, irritated and annoyed are synonyms defined as:

Other synonyms of irritated include miffed, nettled, peeved, pissed, pissed off, riled, roiled, steamed, stung.

irritated (adjective)	annoyed (adjective)
aroused to impatience or anger	aroused to impatience or anger
	troubled persistently especially with petty annoyances