irritating vs painful

irritating and painful both are adjectives.

Word	Noun	Adjective	Verb	Adverb
irritating	No	Yes	No	No
painful	No	Yes	No	No

As adjectives, irritating and painful are synonyms defined as:

irritating (adjective)	painful (adjective)
causing irritation or annoyance	causing physical or psychological pain
(used of physical stimuli) serving to stimulate or excite	exceptionally bad or displeasing
causing physical discomfort	causing physical discomfort
	causing misery or pain or distress