The word resoluteness 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: 15
Highest Scoring Words With Friends™ Plays In The Letters resoluteness
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Seven Letter Word Alert: (59 words)
eluents, elutors, ensouls, ensures, entrees, estrone, estrous, eustele, lessees, lessens, lessons, lessors, lotuses, lusters, nesters, nestles, netless, neuters, oestrus, osselet, ostlers, ousters, outsees, relents, renests, resents, resoles, results, retunes, roselet, russets, rustles, sensors, solutes, sonless, sourest, stenose, stereos, sterols, stoners, sunless, sunsets, sutlers, tensors, tenures, toeless, toluene, tonsure, toruses, tossers, tousles, tresses, trusses, tussles, unreels, unreset, unrests, unsorts, useless