erotism vs amativeness

erotism and amativeness both are nouns.

Word	Noun	Adjective	Verb	Adverb
erotism	Yes	No	No	No
amativeness	Yes	No	No	No

As nouns, erotism and amativeness are synonyms defined as:

Other synonyms of erotism include amorousness, eroticism, sexiness.

erotism (noun)	amativeness (noun)
the arousal of feelings of sexual desire	the arousal of feelings of sexual desire
a state of anticipation of sexuality