Unshowered is valid Scrabble Word

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

Definitions for UNSHOWERED in dictionary:

Similar words containing SHOWER without suffix ed and without prefix un

shower12 showers13 showery16 reshower14 showered15 showerer14 reshowers15 showerers15 showerful18 showerier15 showering16 overshower19 reshowered17 showerhead20 showeriest16 showerings17 showerless16 overshowers20 reshowering18 showerheads21 showeriness17 showerproof22 overshowered22 showerproofs23 overshowering23 showerinesses19 showerproofed25 thundershower23 showerproofing26 thundershowers24 showerproofings27
Find what other words can be done using letters: "unshowered"
https://scrabble-word.com/finder/unshowered
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