The word unsectarian 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™ Play In The Letters unsectarian
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Seven Letter Word Alert: (69 words)
acaters, acuates, ancient, antsier, arcsine, arctans, arcuate, arsenic, artisan, atresia, aunties, aurates, canines, cannier, canters, carinae, carnies, catenin, cauters, centaur, certain, cistern, cretins, cristae, curates, curtain, encrust, entrain, incants, incrust, insaner, interns, inturns, nascent, nastier, natures, nautica, nectars, nuances, nutcase, nutsier, raciest, recants, restain, retains, retinas, satanic, saucier, saunter, saurian, scanner, scanter, sinuate, stainer, stannic, stunner, sunnier, tanners, tinners, trances, tsarina, uncarts, uncrate, unearnt, uniters, unrisen, unstain, uricase, urinate