exclusion vs riddance

exclusion and riddance both are nouns.

Word	Noun	Adjective	Verb	Adverb
exclusion	Yes	No	No	No
riddance	Yes	No	No	No

As nouns, exclusion and riddance are synonyms defined as:

Other synonyms of exclusion include ejection, expulsion.

exclusion (noun)	riddance (noun)
the act of forcing out someone or something	the act of forcing out someone or something
a deliberate act of omission	the act of removing or getting rid of something
the state of being excluded
the state of being excommunicated