Undismantled is valid Scrabble Word

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

Definitions for UNDISMANTLED in dictionary:

Similar words containing DISMANTL without suffix ed and without prefix un

dismantle12 dismantled14 dismantler13 dismantles13 dismantlers14 dismantling15 dismantlings16 dismantlement18 dismantlements19
Find what other words can be done using letters: "undismantled"
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