The word discourtesy 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 discourtesy
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Seven Letter Word Alert: (80 words)
ceroids, citrusy, coedits, corsets, cosiest, coursed, courses, courted, credits, crossed, crudest, cruised, cruises, crusted, curtsey, custody, cystoid, cystous, cytosis, decrust, destroy, detours, directs, dissect, dossier, dousers, ductors, dusters, dustier, editors, eductor, erotics, escorts, escudos, estrous, eudicot, ioduret, oecists, oestrus, ousters, outride, outside, oysters, reducts, restudy, roisted, rosiest, rudites, rustics, scoured, scouted, scouter, sectors, serious, society, sortied, sorties, sourced, sources, sourest, steroid, storeys, storied, stories, stourie, strides, studier, studies, studios, sucrose, sudsier, suiters, suitors, tedious, tierods, tissued, tissuey, toruses, trussed, urocyst