The word dissoluteness 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: 17
Highest Scoring Words With Friends™ Plays In The Letters dissoluteness
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Seven Letter Word Alert: (93 words)
delints, delists, delouse, denoise, denotes, densest, dentils, desilts, desists, destine, detinue, detunes, diesels, diluent, dilutes, dissent, dotless, duelist, dunites, eloined, eluents, elusion, elution, endless, enlists, ensouls, ensuite, indoles, insoles, insults, lenited, lenites, lesions, lessens, lessons, linseed, lioness, lionets, listens, lotuses, loudest, luniest, nestled, nestles, netless, nodules, nosiest, nudists, nutseed, oilseed, oldness, osseins, osselet, outlies, outline, outsees, outside, seitens, sessile, session, sestine, silents, sinless, sinuses, snidest, snouted, sodless, solutes, sonless, stenose, studies, studios, sunless, sunsets, tedious, tensile, tieless, tinsels, tissued, tissues, toeless, toluene, toluide, tonsils, tousled, tousles, tussled, tussles, unlists, unoiled, untiled, useless, utensil