Undipped is valid Scrabble Word

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

Definitions for UNDIPPED in dictionary:

Similar words containing DIPP without suffix ed and without prefix un

dippy13 dipped12 dipper11 dippers12 dippier12 dipping13 dippable15 dippiest13 dippings14 redipped14 dipperful17 dippiness14 redipping15 dipperfuls18 dippinesses16
Find what other words can be done using letters: "undipped"
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