The word irreproducible 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: 26
Highest Scoring Words With Friends™ Plays In The Letters irreproducible
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Seven Letter Word Alert: (60 words)
becloud, bedclip, berried, biocide, blurred, blurrer, boulder, bridler, broiled, broiler, builder, burlier, coupled, coupler, courier, crueler, curlier, curried, currier, decibel, decrier, decuple, deplore, doubler, epicure, euploid, liriope, oilbird, orderer, pedicel, pedicle, periled, pierced, piercer, ploidic, policed, preboil, precode, prelude, pricier, proceed, procure, produce, prouder, puerile, rebored, rebuild, recured, redpole, reducer, reoiled, reorder, repiled, replied, replier, reprice, reprobe, ripcord, roilier, ulcered