The word implicitnesses 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: 25
Highest Scoring Words With Friends™ Play In The Letters implicitnesses
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Seven Letter Word Alert: (81 words)
cements, cesspit, clement, clients, eclipse, elicits, elitism, emetics, empties, enlists, entices, epistle, iceless, iciness, ileitis, implies, incests, incises, incites, insects, insists, inspect, insteps, itemise, lenites, lessens, license, limpest, limpets, listens, menisci, miscite, mispens, missile, misstep, nemesis, nestles, netless, pectens, pectins, pelites, pelitic, pencils, penises, penlite, pestles, petless, pieless, pieties, pietism, pinless, pistils, pitless, seismic, seitens, selects, septics, sessile, sestine, siemens, silence, silents, similes, simples, sinless, species, spinels, spinets, spleens, splenic, splices, splines, splints, stencil, stimies, temples, tensile, tieless, tiepins, tinsels, tipless