The word unresisting 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: 16
Highest Scoring Words With Friends™ Plays In The Letters unresisting
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Seven Letter Word Alert: (54 words)
ensigns, ensuing, gunners, gunters, gustier, gutsier, igniter, ignites, ingests, ingress, inserts, insures, interns, inturns, inuring, issuing, nesting, nursing, nutsier, reining, renting, resigns, resting, reusing, rinsing, risings, ruining, rusting, sensing, signers, signets, singers, sinners, sinters, stinger, strings, stunner, suiters, suiting, sunnier, sunnies, sunrise, tensing, tiering, tigress, tinners, tinnier, tunings, turning, uniters, unities, uniting, unrests, unrisen