The word unsheathing is playable in Words With Friends™, no blanks required. Because it is longer than 7 letters, you would have to play off an existing word or do it in several moves.
Words With Friends™ Letter Score: 20
Highest Scoring Words With Friends™ Plays In The Letters unsheathing
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Seven Letter Word Alert: (25 words)
anguish, antigen, augites, aunties, eighths, ensuing, gentian, guanine, guineas, hashing, heating, heights, highest, hunting, hushing, husting, nesting, seating, sinuate, teasing, tensing, tunings, unhinge, unstage, unstain