Overachievements is valid word

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

Definitions for OVERACHIEVEMENTS in dictionary:

Similar words containing OVERACHIEVEMENT without suffix s

overachievement28
Find what other words can be done using letters: "overachievements"
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