Yawnsome is valid Scrabble Word

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

Definitions for YAWNSOME in dictionary:

Words related to YAWNSOME

boring9
Find what other words can be done using letters: "yawnsome"
https://scrabble-word.com/finder/yawnsome
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