Undisordered is valid Scrabble Word

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

Definitions for UNDISORDERED in dictionary:

Similar words containing DISORDER without suffix ed and without prefix un

disorder10 disorders11 disordered13 disorderly15 disordering14 disorderedly18 disorderlies14 disorderedness17 disorderliness16 disorderlinesse17 disorderednesse18 disorderlinesses18 disorderednesses19
Find what other words can be done using letters: "undisordered"
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