Impossibilist is valid Scrabble Word

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

Definitions for IMPOSSIBILIST in dictionary:

Words related to IMPOSSIBILIST

impossibilists20

Words that contain IMPOSSIBILIST

impossibilists20
Find what other words can be done using letters: "impossibilist"
https://scrabble-word.com/finder/impossibilist
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