The word stateliness 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: 13
Highest Scoring Words With Friends™ Play In The Letters stateliness
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Seven Letter Word Alert: (51 words)
assents, easiest, elastin, enlists, enseals, entails, entitle, estates, instate, lassies, lateens, latents, latites, leanest, lenites, lessens, lineate, listens, nailset, neatest, nestles, netless, nettles, salient, salines, sateens, seitans, seitens, senates, sensate, sessile, sestets, sestina, sestine, settles, siestas, silanes, silents, sinless, stalest, statins, talents, tassels, tealess, teasels, telnets, tensest, tensile, tieless, tinsels, tsetses