Delayingly is valid Scrabble Word

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

Definitions for DELAYINGLY in dictionary:

Words related to DELAYINGLY

delay9
Find what other words can be done using letters: "delayingly"
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