poetic justice vs comeuppance

poetic justice and comeuppance both are nouns.

Word	Noun	Adjective	Verb	Adverb
poetic justice	Yes	No	No	No
comeuppance	Yes	No	No	No

As nouns, poetic justice and comeuppance are synonyms defined as:

poetic justice and comeuppance: an outcome (good or bad) that is well deserved and fitting

Other synonyms of poetic justice include comeupance, just deserts.

poetic justice (noun)	comeuppance (noun)
an outcome (good or bad) that is well deserved and fitting	an outcome (good or bad) that is well deserved and fitting