Untarred is valid Scrabble Word

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

Definitions for UNTARRED in dictionary:

Similar words containing TARR without suffix ed and without prefix un

starr5 tarre5 tarry8 starrs6 starry9 tarras6 tarred7 tarres6 tarrow9 catarrh12 starred8 tarried8 tarrier7 tarries7 tarring8 tarrock13 tarrows10 catarrhs13 starrier8 starrily11 starring9 tarragon9 tarrases8 tarriers8 tarriest8 tarrings9 tarrocks14 tarrowed12 tarrying12 unstarry11 bestarred12 catarrhal14 costarred12 instarred10 starriest9 starrings10 tarragons10 tarriance11 tarriness9 tarrowing13 unstarred10 bestarring13 catarrhine15 catarrhous15 chitarrone15 chitarroni15 costarring13 instarring11 postarrest12 starriness10 tarriances12 unstarrier10 catarrhally19 catarrhines16 tarradiddle14 tarrinesses11 unstarriest11 starrinesses12 tarradiddles15
Find what other words can be done using letters: "untarred"
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