The word ductileness 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: 18
Highest Scoring Words With Friends™ Play In The Letters ductileness
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Seven Letter Word Alert: (75 words)
celsius, clients, cutline, deceits, deciles, decline, delicts, delints, delists, densest, dentils, descent, desilts, destine, detinue, detunes, diesels, diluent, dilutes, dissect, dissent, ductile, duelist, dulcets, dunites, eluents, endless, enlists, ensuite, enticed, entices, iceless, incests, include, induces, inducts, insects, insults, lenited, lenites, leucine, leucite, license, linseed, listens, lucites, luniest, nestled, nestles, netless, nuclide, nudists, nutseed, scented, seclude, seduces, seitens, selects, sestine, silence, silents, sluiced, sluices, snidest, stencil, studies, tensile, tieless, tinsels, tissued, tussled, uncited, unlists, untiled, utensil