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Is INFALLIBLE a valid Scrabble word?

Yes, INFALLIBLE is a valid word in US Scrabble and UK Scrabble, worth 15 points.

Base score before bonus squares; blank tiles score zero.

What does INFALLIBLE mean?

  1. adjective

    incapable of failure or error

    “an infallible antidote”

Definitions from WordNet 3.1, Princeton University.

Points

15

Scrabble

20

Words With Friends

10

Letters

I (1) + N (1) + F (4) + A (1) + L (1) + L (1) + I (1) + B (3) + L (1) + E (1) = 15 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 INFALLIBLE

INFALLIBLE 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 INFALLIBLE

The 60 highest-scoring words using these letters.

Study INFALLIBLE and related words

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