The word putridness 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: 16
Highest Scoring Words With Friends™ Plays In The Letters putridness
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Seven Letter Word Alert: (70 words)
dispute, disrupt, dissent, dressup, dunites, dusters, dustier, inserts, insteps, insured, insures, intrude, nudists, nutsier, persist, priests, printed, prudent, pterins, pundits, puniest, punster, punters, purines, purists, pussier, reinput, respins, rudites, sinters, snidest, snipers, spiders, spinets, spirted, spriest, sprints, sprites, spurned, spurted, stipend, strides, striped, stripes, studier, studies, stupers, stupids, sudsier, suiters, sunrise, suspend, suspire, tinders, tissued, tripeds, trussed, turnips, undress, undrest, unipeds, uniters, unrests, unstrip, untired, untried, uprisen, uprises, upsides, uptrend