Unclimbed is valid Scrabble Word

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

Definitions for UNCLIMBED in dictionary:

Similar words containing CLIMB without suffix ed and without prefix un

climb11 climbs12 climbed14 climber13 reclimb13 upclimb15 climbers14 climbing15 outclimb14 reclimbs14 upclimbs16 climbable17 climbdown19 climbings16 outclimbs15 reclimbed16 upclimbed18 climbdowns20 outclimbed17 reclimbing17 upclimbing19 outclimbing18 unclimbable19 wallclimber20 wallclimbers21 unclimbableness23 unclimbablenesses25
Find what other words can be done using letters: "unclimbed"
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