qualification vs fittingness

qualification and fittingness both are nouns.

Word	Noun	Adjective	Verb	Adverb
qualification	Yes	No	No	No
fittingness	Yes	No	No	No

As nouns, fittingness is a hypernym of qualification; that is, fittingness is a word with a broader meaning than qualification:

qualification: an attribute that must be met or complied with and that fits a person for something
fittingness: the quality of being suitable

Other hypernyms of qualification include fitness.

qualification (noun)	fittingness (noun)
the act of modifying or changing the strength of some idea	the quality of being suitable
an attribute that must be met or complied with and that fits a person for something
a statement that limits or restricts some claim