Thriftlessnesses is valid word

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

Definitions for THRIFTLESSNESSES in dictionary:

Similar words containing THRIFTLESSNESSE without suffix s

thriftlessnesse21
Find what other words can be done using letters: "thriftlessnesses"
https://scrabble-word.com/finder/thriftlessnesses
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