Invalidest is valid Scrabble Word

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

Words related to INVALIDEST

invalid11
Find what other words can be done using letters: "invalidest"
https://scrabble-word.com/finder/invalidest
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