Tenderheartednesses is valid word

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

Definitions for TENDERHEARTEDNESSES in dictionary:

Find what other words can be done using letters: "tenderheartednesses"
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