The word unmortgaged 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: 21
Highest Scoring Words With Friends™ Play In The Letters unmortgaged
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Seven Letter Word Alert: (50 words)
aground, augment, demagog, demount, dormant, dragnet, enamour, garment, gaunted, gaunter, gourmet, granted, groaned, grouted, grunted, gudgeon, guerdon, magneto, manured, matured, megaton, montage, mordant, mordent, mounted, mounter, mourned, mutagen, natured, neuroma, outdare, outdrag, outearn, outrage, outread, readout, remound, remount, roadmen, rotunda, tangoed, tonearm, tongued, trudgen, unarmed, undergo, unmated, unrated, untamed, untread