malformation vs misshapenness

malformation and misshapenness both are nouns.

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

As nouns, malformation and misshapenness are synonyms defined as:

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

Other synonyms of malformation include deformity.

malformation (noun)	misshapenness (noun)
something abnormal or anomalous	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