The word unrighteous 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: 18
Highest Scoring Words With Friends™ Plays In The Letters unrighteous
:
Seven Letter Word Alert: (81 words)
goiters, goitres, goriest, goutier, gunshot, gunters, gushier, gustier, gutsier, heinous, heroins, hirsute, histone, hogties, hornets, horsing, hosting, housing, hungers, hunters, hurting, husting, igneous, ignores, inhouse, inshore, nitrous, norites, nourish, nutsier, ogreish, orients, ousting, outgrin, outguns, outgush, outhire, outings, outruns, outrush, outsung, regions, resight, resting, reusing, roguish, roughen, rousing, routine, routing, ruinous, rushing, rusting, shoeing, shoring, shorten, shotgun, shouter, shunter, sighter, sorting, souring, stinger, stonier, storing, stourie, surgeon, tenuous, thiones, thrones, throngs, tongues, tonsure, toughen, tougher, toughie, touring, triones, troughs, unhorse, uniters