The word dishonestly 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 dishonestly
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Seven Letter Word Alert: (50 words)
delints, delists, density, dentils, desilts, destiny, diethyl, dissent, distyle, doltish, dotless, enlists, histone, hoisted, holiest, honesty, hostels, hostile, hotline, hotness, indoles, insoles, instyle, isohels, isohyet, lesions, lioness, lionets, listens, nosiest, notedly, oldness, shields, silents, sloshed, snidely, snidest, stonily, stonish, stylion, stylise, stylish, styloid, systole, thiones, tinsels, tonsils, toyless, tyloses, tylosis