deformity vs misshapenness

deformity and misshapenness both are nouns.

Word	Noun	Adjective	Verb	Adverb
deformity	Yes	No	No	No
misshapenness	Yes	No	No	No

As nouns, deformity and misshapenness are synonyms defined as:

deformity and misshapenness: an affliction in which some part of the body is misshapen or malformed

Other synonyms of deformity include malformation.

deformity (noun)	misshapenness (noun)
an appearance that has been spoiled or is misshapen	an affliction in which some part of the body is misshapen or malformed
an affliction in which some part of the body is misshapen or malformed