Unfeasibly is valid Scrabble Word

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

Definitions for UNFEASIBLY in dictionary:

Similar words containing FEASIB without suffix ly and without prefix un

feasible13 feasibly16 defeasible16 infeasible15 unfeasible15 defeasibly19 feasibility19 feasibleness17 indefeasible18 indefeasibly21 defeasibility22 feasibilities18 infeasibility21 defeasibleness20 feasiblenesses19 infeasibleness19 defeasibilities21 indefeasibility24 infeasibilities20 indefeasibiliti21 indefeasibilities23
Find what other words can be done using letters: "unfeasibly"
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