irritating vs nettlesome

irritating and nettlesome both are adjectives.

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

As adjectives, irritating and nettlesome are synonyms defined as:

Other synonyms of irritating include annoying, bothersome, galling, pesky, pestering, pestiferous, plaguey, plaguy, teasing, vexatious, vexing.

irritating (adjective)	nettlesome (adjective)
causing irritation or annoyance	causing irritation or annoyance
(used of physical stimuli) serving to stimulate or excite	easily irritated or annoyed
causing physical discomfort