Unboarded is valid Scrabble Word

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

Definitions for UNBOARDED in dictionary:

How to use UNBOARDED in a sentence

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