The word disproportional 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: 24
Highest Scoring Words With Friends™ Play In The Letters
Seven Letter Word Alert: (79 words)
airdrop, airport, appoint, aspirin, astroid, daltons, diarist, dilator, dipolar, diptail, disroot, donairs, dopants, idolist, indoors, inroads, isodont, laptops, liaison, lotions, noloads, nostril, odorant, onloads, ooplast, opioids, options, oration, orators, ordains, ordinal, pardons, parlors, parotid, parrots, parsnip, patrols, patrons, pianist, piarist, pinitol, pintail, plastid, platipi, platoon, plosion, polaron, poplars, poplins, portals, portion, potions, protons, rapport, raptors, rations, ripstop, rostral, sandpit, sirloin, soprano, spionid, spiroid, sporont, stridor, tailors, tailpin, talonid, tapirid, toprail, topsail, topsoil, topspin, tornado, toroids, torpids, torpors, torsion, tripods