Syncopative is valid Scrabble Word

Is syncopative a scrabble word?
Official Scrabble Players Dictionary YES
Official Tournament and Club Word List YES
Collins Scrabble Words YES
Is syncopative valid Words with Friends?
Words with Friends YES

Definitions for SYNCOPATIVE in dictionary:

Find what other words can be done using letters: "syncopative"
https://scrabble-word.com/finder/syncopative
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