The word unaccredited 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: 22
Highest Scoring Words With Friends™ Plays In The Letters unaccredited
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Seven Letter Word Alert: (86 words)
acceded, acceder, accited, accrete, accrued, adducer, arenite, audited, auditee, cadence, cairned, candied, cantred, catered, centaur, centred, centric, certain, created, cuneate, curated, curtain, dandier, daunted, deaired, decadic, decider, decidua, decried, deducer, denture, denuder, detinue, detrain, detrend, detrude, detuned, detuner, drained, eccrine, educand, educate, enacted, endured, enteric, enticed, enticer, eructed, erudite, induced, inducer, intrude, natured, reacted, readied, reaudit, recaned, recited, redated, reduced, reenact, retuned, reunite, tenured, tradein, traduce, trained, trainee, tranced, treaded, trended, triaene, unaided, unaired, uncared, uncited, uncrate, undated, undried, unerect, unrated, untired, untread, untried, urinate, uterine