The word unproductive 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™ Play In The Letters unproductive
:
Seven Letter Word Alert: (65 words)
cervoid, codrive, conduit, convert, counted, counter, courted, couture, coverup, crunode, cuprite, cutover, diopter, dioptre, divorce, eductor, eudicot, evictor, incurve, inducer, intrude, ioduret, nepotic, noticed, outride, overcut, overtip, oviduct, peridot, picture, pivoted, pivoter, pointed, pointer, porcine, portend, pounced, pouncer, pounder, poutier, poutine, predict, printed, produce, product, protein, provide, prudent, recount, reinput, repivot, repoint, roundup, routine, trounce, trouped, uncited, uncored, uncover, uncured, unrivet, untired, untried, uptrend, verdict