The word scrupulousness 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 scrupulousness
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Seven Letter Word Alert: (50 words)
censors, cloners, closers, closeup, closure, consuls, corpses, counsel, coupler, couples, courses, cresols, crosses, cupless, cupules, cussers, ensouls, leprous, lessons, lessors, lupuses, nucleus, percuss, persons, plusses, poseurs, possess, pouncer, pounces, process, pulsers, punless, pursues, recoups, scruple, sensors, slopers, sonless, sources, sporule, spouses, spruces, sucrose, sunless, surplus, unclose, uncross, uncurls, uncurse, uprouse