Windlessnesses is valid Scrabble Word

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

Definitions for WINDLESSNESSES in dictionary:

Words related to WINDLESSNESSES

windlessness16
Find what other words can be done using letters: "windlessnesses"
https://scrabble-word.com/finder/windlessnesses
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