The word undershoots 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: 16
Highest Scoring Words With Friends™ Play In The Letters undershoots
:
Seven Letter Word Alert: (62 words)
dehorns, dehorts, detours, dousers, dusters, estrous, honored, honours, hornets, hotness, hotrods, hunters, noosers, nosodes, oestrus, onerous, onshore, osteons, ousters, outdoer, outdoes, outdone, outrode, reshoot, resound, rodents, roosted, rotunds, shooter, shorted, shorten, shouted, shouter, shrouds, shunted, shunter, snooted, snorted, snouted, sooners, soonest, soothed, soother, soothes, sounder, sourest, stoners, tensors, thorned, throned, thrones, thunder, tonsure, toruses, trussed, undoers, undress, undrest, unhorse, unrests, unshoed, unsorts