Shiftlessnesses is valid Scrabble Word

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

Definitions for SHIFTLESSNESSES in dictionary:

Words related to SHIFTLESSNESSES

shiftlessness19
Find what other words can be done using letters: "shiftlessnesses"
https://scrabble-word.com/finder/shiftlessnesses
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