The word countermined 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™ Play In The Letters
Seven Letter Word Alert: (89 words)
centred, cerumen, codeine, condemn, conduit, contend, coterie, counted, counter, courted, crunode, decorum, demerit, demonic, demotic, demount, dentine, denture, detinue, detuner, dimeter, dormice, eductor, eminent, encoder, encored, endemic, endnote, enteric, enticed, enticer, eructed, erudite, eudemon, eudicot, incomer, inducer, intoned, intoner, intrude, inuendo, ioduret, mention, merited, minuter, miocene, mitered, mordent, mounted, mounter, mountie, mourned, munited, neutron, nitrene, nominee, noncute, nondiet, nonmute, noticed, numeric, onetime, outride, recited, recount, remined, remound, remount, retimed, retuned, reunion, reunite, routine, runtime, tenured, trounce, tumeric, uncited, uncored, uncrime, unction, unerect, unicorn, unmined, unnoted, untimed, untired, untried, uterine