Ĭn/fĭ-dĕl'ĭ-ty, n.
n. [Prefix in, not, and fidelity: Fr. infidélité, Pr. infidelitat, Sp. infidelidad, It. infidelità, infedeltà, Lat. infidelitas.]
Sense 1. Want of faith or belief; a withholding of confidence.
Sense 2. Disbelief of the inspiration of the Scriptures, or the divine origin of Christianity; unbelief.
There is no doubt that vanity is one principal cause of infidelity. Knox.
Sense 3. Unfaithfulness to the marriage contract; a violation of the marriage covenant by adultery or lewdness.
Sense 4. Breach of trust; unfaithfulness to a charge, or to moral obligation; treachery; deceit; as, the infidelity of a friend or a servant.