The word unselfconsciousness cannot be made in Words With Friends™. It is 19 letters long, too long to fit on a WordsWithFriends board (15 letters max).
Highest Scoring Words With Friends™ Plays In The Letters unselfconsciousness
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Seven Letter Word Alert: (87 words)
celcius, celsius, cession, ciscoes, colonic, colossi, concise, concuss, confess, confine, confuse, console, consuls, cosines, coulees, council, counsel, cousins, elusion, enclose, ensouls, felines, felsics, fennels, fescues, finesse, finless, flenses, flosses, flounce, focuses, fossils, fucoses, funnels, funnies, fusions, icecool, icefloe, iceless, incense, infuses, insoles, ionones, lesions, lessens, lessons, leucine, licence, license, lioness, loonies, loosens, nonenes, nonlife, nonself, nucleic, nucleon, nucleus, occluse, olefins, oleosin, oncosis, oneness, oneself, osseins, osseous, ossicle, science, sconces, selfies, sessile, session, silence, sinless, sinuous, sinuses, sluices, sonless, success, sulfone, sunless, sunnies, unclose, uncoils, unfocus, unloose, useless