concaveness vs conformation

concaveness and conformation both are nouns.

Word	Noun	Adjective	Verb	Adverb
concaveness	Yes	No	No	No
conformation	Yes	No	No	No

As nouns, conformation is a hypernym of concaveness; that is, conformation is a word with a broader meaning than concaveness:

Other hypernyms of concaveness include configuration, contour, form, shape.

concaveness (noun)	conformation (noun)
the property possessed by a concave shape	acting according to certain accepted standards
	any spatial attributes (especially as defined by outline)
	a symmetrical arrangement of the parts of a thing