Unnaturalizing is valid Scrabble Word

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

Definitions for UNNATURALIZING in dictionary:

Words related to UNNATURALIZING

unnaturalize21
Find what other words can be done using letters: "unnaturalizing"
https://scrabble-word.com/finder/unnaturalizing
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