Dastardnesses is valid Scrabble Word

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

Definitions for DASTARDNESSES in dictionary:

Words related to DASTARDNESSES

dastard9
Find what other words can be done using letters: "dastardnesses"
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