pederast vs child molester

pederast and child molester both are nouns.

Word	Noun	Adjective	Verb	Adverb
pederast	Yes	No	No	No
child molester	Yes	No	No	No

As nouns, pederast and child molester are synonyms defined as:

pederast and child molester: a man who has sex (usually sodomy) with a boy as the passive partner

Other synonyms of pederast include paederast.

pederast (noun)	child molester (noun)
a man who has sex (usually sodomy) with a boy as the passive partner	a man who has sex (usually sodomy) with a boy as the passive partner