Unattempted is valid Scrabble Word

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

Definitions for UNATTEMPTED in dictionary:

How to use UNATTEMPTED in a sentence

Similar words containing ATTEMPT without suffix ed and without prefix un

attempt11 attempts12 attempted14 attempter13 reattempt13 attempters14 attempting15 reattempts14 attemptable17 reattempted16 reattempting17 attemptability23
Find what other words can be done using letters: "unattempted"
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