Antagonistically is valid word

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

Definitions for ANTAGONISTICALLY in dictionary:

Similar words containing ANTAGONISTICAL without suffix ly

antagonisticall18
Find what other words can be done using letters: "antagonistically"
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