Unguerdoned is valid Scrabble Word

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

Definitions for UNGUERDONED in dictionary:

Similar words containing GUERDON without suffix ed and without prefix un

guerdon9 guerdons10 guerdoned12 guerdoner11 reguerdon11 guerdoners12 guerdoning13 reguerdons12 reguerdoned14 reguerdoning15
Find what other words can be done using letters: "unguerdoned"
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