stung vs pissed off

stung and pissed off both are adjectives.

Word	Noun	Adjective	Verb	Adverb
stung	No	Yes	No	No
pissed off	No	Yes	No	No

As adjectives, stung and pissed off are synonyms defined as:

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

stung (adjective)	pissed off (adjective)
aroused to impatience or anger	aroused to impatience or anger