The word appositeness 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: 19
Highest Scoring Words With Friends™ Play In The Letters appositeness
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Seven Letter Word Alert: (53 words)
appoint, apposes, aptness, asepses, asepsis, assents, easiest, epitope, insteps, nappies, nosiest, onestep, openest, opiates, osseins, pansies, panties, passion, pasties, patines, penises, pentose, peonies, pepsins, peptise, peptone, petnaps, pinesap, pisspot, pistons, poesies, poetess, poetise, possets, poteens, potpies, sateens, seasons, seitans, seitens, senates, sensate, session, sestina, sestine, siestas, snippet, spinets, spinose, stenose, steppes, stepson, topspin