Postfixal is valid Scrabble Word

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

Definitions for POSTFIXAL in dictionary:

Words related to POSTFIXAL

postfix19
Find what other words can be done using letters: "postfixal"
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