Unsharpened is valid Scrabble Word

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

Definitions for UNSHARPENED in dictionary:

Similar words containing SHARPEN without suffix ed and without prefix un

sharpen12 sharpens13 resharpen14 sharpened15 sharpener14 resharpens15 sharpeners15 sharpening16 resharpened17 sharpenings17 resharpening18
Find what other words can be done using letters: "unsharpened"
https://scrabble-word.com/finder/unsharpened
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