Immaterialness is valid Scrabble Word

Is immaterialness a scrabble word?
Official Scrabble Players Dictionary NO
Official Tournament and Club Word List NO
Collins Scrabble Words YES
Is immaterialness valid Words with Friends?
Words with Friends NO

Definitions for IMMATERIALNESS in dictionary:

Similar words containing MATERIALNES without suffix s and without prefix im

materialness14 materialnesses16
Find what other words can be done using letters: "immaterialness"
https://scrabble-word.com/finder/immaterialness
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