Unsaturation is valid Scrabble Word

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

Definitions for UNSATURATION in dictionary:

Words related to UNSATURATION

unsaturations13
Find what other words can be done using letters: "unsaturation"
https://scrabble-word.com/finder/unsaturation
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