The word unshrinkable 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: 25
Highest Scoring Words With Friends™ Play In The Letters unshrinkable
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Seven Letter Word Alert: (69 words)
arshine, balkers, balkier, bankers, banners, bearish, bilkers, blinker, blueish, blusher, breakin, brisken, bulkier, bunkers, bunnies, burials, burnish, bushier, ensnarl, hankers, hankies, harkens, haulers, herbals, hernial, hernias, hunkers, hunkier, huskier, inhaler, inhales, insaner, insular, inulase, knaurle, knaurls, lankier, larkish, lesbian, linkers, nailers, nebular, nebulas, relinks, renails, runnels, shakier, shalier, shunner, skiable, skinner, snakier, suberin, subrail, sulkier, sunlike, sunnier, unalike, unbales, unbrake, unlearn, unleash, unlikes, unlinks, unrisen, unshare, unsnarl, urinals, urnlike