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Is IMPENETRABLE a valid Scrabble word?

Yes, IMPENETRABLE is a valid word in US Scrabble and UK Scrabble, worth 18 points.

Base score before bonus squares; blank tiles score zero.

What does IMPENETRABLE mean?

  1. adjective

    not admitting of penetration or passage into or through

    “an impenetrable fortress”

  2. adjective

    permitting little if any light to pass through because of denseness of matter

    “dense smoke”

  3. adjective

    impossible to understand

    “impenetrable jargon”

Definitions from WordNet 3.1, Princeton University.

Points

18

Scrabble

23

Words With Friends

12

Letters

I (1) + M (3) + P (3) + E (1) + N (1) + E (1) + T (1) + R (1) + A (1) + B (3) + L (1) + E (1) = 18 points in Scrabble.

Dictionary status

  • Scrabble (US & Canada)Valid
  • Scrabble (UK & worldwide)Valid
  • Words With FriendsListed

Scrabble lists: NWL2023 (US & Canada) and CSW24 (UK & worldwide). WWF uses our ENABLE reference plus verified additions. “Listed” and “Not listed” describe that reference; check acceptance in the game. Sources reviewed 2026-10-03.

Hooks for IMPENETRABLE

IMPENETRABLE has no one-letter front or back hooks in US Scrabble. Adding a single letter to either end does not make another word in that list.

Front hooks0

None — nothing can be added to the front.

Back hooks0

None — nothing can be added to the end.

Words you can make from IMPENETRABLE

The 60 highest-scoring words using these letters.

Study IMPENETRABLE and related words

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