Untwilled is valid Scrabble Word

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

Definitions for UNTWILLED in dictionary:

Similar words containing TWILL without suffix ed and without prefix un

twill8 twills9 twilly12 outwill10 twilled11 outwills11 twillies11 twilling12 outwilled13 twillings13 outwilling14
Find what other words can be done using letters: "untwilled"
https://scrabble-word.com/finder/untwilled
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