infidelity

Infidelity is the act of behaving unfaithfully and cheating on a spouse or significant other. (noun)

An example of infidelity is when you have an affair when you are married and cheat on your spouse.

See infidelity in Webster's New World College Dictionary

noun

the fact or state of being an infidel
unfaithfulness or disloyalty to another; esp., sexual unfaithfulness of a husband or wife; adultery
pl. infidelities an unfaithful or disloyal act

See infidelity in American Heritage Dictionary 4

(ĭnˌfĭ-dĕlˈĭ-tē)

noun pl. in·fi·del·i·ties

a. Unfaithfulness to a sexual partner, especially a spouse.
b. An act of sexual unfaithfulness.
Lack of fidelity or loyalty.
Lack of religious belief.

Learn more about infidelity

» infidelity synonyms

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