unfailing synonyms

unfailing

modif.

  1. Inexhaustible

    ceaseless, endless, infallible; see eternal 1, 2, infallible.

  2. Sure

    absolute, continual, surefire*; see constant 1, certain 3.

Webster's New World Roget's A-Z Thesaurus Copyright © 1999 by Wiley Publishing, Inc., Cleveland, Ohio.
Used by arrangement with John Wiley & Sons, Inc.