The word adulterates 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: 14
Highest Scoring Words With Friends™ Play In The Letters adulterates
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Seven Letter Word Alert: (63 words)
adulate, aerated, aerates, alerted, altered, astuter, auletes, aurates, austere, austral, dataset, dealate, dealers, dearest, delates, deltate, duelers, elaters, eluated, eluates, eluders, estrual, estuate, euaster, leaders, letters, radulae, radulas, rattled, rattles, realest, reasted, redates, redeals, redealt, related, relates, restate, retaste, rustled, saltate, saluted, saluter, sauteed, sedater, settled, settler, slatted, starlet, started, startle, statued, stature, stealer, strudel, tasered, treadle, treated, trestle, trusted, trustee, turtles, uttered