adulterous
/ædˈʌltərəs/Definitions
1. adjective
relating to or involving adultery; unfaithful or disloyal to one’s partner
“The adulterous relationship was discovered and led to a public scandal.”
2. noun
a person who has an adulterous relationship
“The judge spoke sternly to the adulterous man in the courtroom.”
3. adverb
in a way that involves or shows adultery; unfaithfully
“She behaved adulterously towards her husband, leading to a painful divorce.”
4. verb
to be or become unfaithful or disloyal to one’s partner
“He was accused of adulterously cheating on his wife with another woman.”