Tristfulnesses is valid Scrabble Word

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

Definitions for TRISTFULNESSES in dictionary:

Words related to TRISTFULNESSES

tristfulness15
Find what other words can be done using letters: "tristfulnesses"
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