Acceptable For Game Play - US & UK word lists

This word is acceptable for play in the US & UK dictionaries that are being used in the following games:

The American Heritage® Dictionary of the English Language, 4th Edition
  • adj. Difficult or impossible to understand; incomprehensible: unfathomable theories.
  • adj. Difficult or impossible to measure: the unfathomable depths.
  • Wiktionary, Creative Commons Attribution/Share-Alike License
  • adj. impossible to fathom or understand; incomprehensible
  • adj. difficult to penetrate.
  • The Century Dictionary and Cyclopedia
  • Incapable of being fathomed or sounded; too deep to be measured; hence, not capable of being sounded by thought or comprehended.
  • WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
  • adj. of depth; not capable of being sounded or measured
  • adj. resembling an abyss in depth; so deep as to be unmeasurable
  • adj. impossible to come to understand
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