concaveness vs configuration

concaveness and configuration both are nouns.

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

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

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

concaveness (noun)	configuration (noun)
the property possessed by a concave shape	any spatial attributes (especially as defined by outline)
	an arrangement of parts or elements