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infidelity definition

in·fi·del·ity (in′fə del′ə tē)

noun

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

Etymology: L infidelitas < infidelis: see infidel

Webster's New World College Dictionary Copyright © 2009 by Wiley Publishing, Inc., Cleveland, Ohio.
Used by arrangement with John Wiley & Sons, Inc.

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