adulterous vs two-timing

adulterous and two-timing both are adjectives.

Word	Noun	Adjective	Verb	Adverb
adulterous	No	Yes	No	No
two-timing	No	Yes	No	No

As adjectives, adulterous and two-timing are synonyms defined as:

Other synonyms of adulterous include cheating.

adulterous (adjective)	two-timing (adjective)
characterized by adultery	not faithful to a spouse or lover
not faithful to a spouse or lover