Unfinishing is valid Scrabble Word

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

Definitions for UNFINISHING in dictionary:

Words related to UNFINISHING

unfinishings19
Find what other words can be done using letters: "unfinishing"
https://scrabble-word.com/finder/unfinishing
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