Determinednesse is valid Scrabble Word

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

Words that contain DETERMINEDNESSE

determinednesses20
Find what other words can be done using letters: "determinednesse"
https://scrabble-word.com/finder/determinednesse
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