congruousness vs congruence

congruousness and congruence both are nouns.

Word	Noun	Adjective	Verb	Adverb
congruousness	Yes	No	No	No
congruence	Yes	No	No	No

As nouns, congruousness and congruence are synonyms defined as:

congruousness and congruence: the quality of agreeing; being suitable and appropriate

Other synonyms of congruousness include congruity.

congruousness (noun)	congruence (noun)
the quality of agreeing; being suitable and appropriate	the quality of agreeing; being suitable and appropriate