Definition of impenetrable

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  • impenetrable is a valid Scrabble US word with a point value of 18
  • impenetrable is a valid Scrabble UK word with a point value of 18
  • impenetrable is a valid Words with friends word with a point value of 23

Definition of impenetrable

  • permitting little if any light to pass through because of denseness of matter (adjective)

    Examples

    1. impenetrable gloom

    Synonyms

    1. dense
    2. heavy
  • impossible to understand (adjective)

    Examples

    1. impenetrable jargon
  • not admitting of penetration or passage into or through (adjective)

    Examples

    1. an impenetrable fortress
    2. impenetrable rain forests

See definition of impenetrable in Merriam Webster