The word dissatisfactory 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: 24
Highest Scoring Words With Friends™ Play In The Letters dissatisfactory
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Seven Letter Word Alert: (47 words)
acidify, acidity, acrasid, aridity, artists, ascarid, assarts, assorts, astroid, carotid, castors, citator, costars, craftsy, cystoid, cytosis, diarist, distort, drastic, factors, factory, fascias, fascist, fridays, racists, ricotta, sadists, safaris, satiric, satisfy, scarify, scissor, scorias, scorify, sissify, soricid, statics, storify, straits, stratas, taoists, tostada, triadic, tricots, trifids, tsarist, yttrias