Unconcealing is valid Scrabble Word

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

Definitions for UNCONCEALING in dictionary:

Similar words containing CONCEAL without suffix ing and without prefix un

conceal11 conceals12 concealed14 concealer13 concealers14 concealing15 concealable17 concealment17 unconcealed16 concealingly20 concealments18 unconcealable19
Find what other words can be done using letters: "unconcealing"
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