The word inextricably 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: 29
Highest Scoring Words With Friends™ Play In The Letters inextricably
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Seven Letter Word Alert: (53 words)
ability, airline, albinic, albitic, anxiety, article, axinite, bairnly, bilayer, biliary, blarney, byliner, cabinet, caliber, calibre, carbine, central, certain, ciliary, ciliate, citable, citrine, clarity, clayier, cyanite, exactly, exilian, icetray, inciter, inertia, inertly, inexact, inlayer, irately, larceny, latency, latrine, liberty, lintier, nectary, ratline, reality, recital, relaxin, reliant, retinal, tearily, tenably, treacly, trenail, triable, triaxle, xyletic