RhymeZone: unfaithful definitions

Definitions of unfaithful:

adjective: not trustworthy
Example: "An unfaithful reproduction"
adjective: not true to duty or obligation or promises
Example: "An unfaithful lover"
adjective: having sexual relations with someone other than your husband or wife, or your boyfriend or girlfriend
Example: "Her husband was unfaithful"
adjective: deliberately and abominably disloyal or likely to betray trust or confidence