impregnable is a valid English word

Scrabble validity: valid ( international - Sowpods, US - Twl06 )
iScramble validity: valid
QuickWords validity: valid

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Meanings

Adjective (COMPARABLE)

Comparative Superlative
more impregnable most impregnable
    (military) Of a fortress or other fortified place: able to withstand all attacks; impenetrable, inconquerable, unvanquishable. (figuratively) Too strong to be defeated or overcome; invincible. Capable of being impregnated; impregnatable.

impregnable is a Scrabble valid word


impregnable is an iScramble valid word


impregnable is an QuickWords valid word


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Same letters words (Anagrams)


Same letters plus one


Same letters minus one