unfathomable synonyms

unfathomable

modif.

  1. Infinite

    boundless, unending; see eternal 2.

  2. Profound

    incomprehensible, abstruse, unknowable, enigmatic; see mysterious 2.

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.