The word sporadically 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: 23
Highest Scoring Words With Friends™ Play In The Letters sporadically
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Seven Letter Word Alert: (41 words)
acrasid, acridly, airplay, ascarid, calypso, carload, carpals, codilla, collard, collars, cordial, crayola, crisply, dipolar, disally, display, dollars, lyrical, pallors, parasol, parlays, payload, payroll, pillars, pillory, placard, ploidal, polaric, polarly, pollard, prosaic, pyloric, radials, radical, rapidly, rosalic, scallop, scarily, soapily, solidly, spacial