The word ingratiatingly 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: 23
Highest Scoring Words With Friends™ Plays In The Letters ingratiatingly
:
Seven Letter Word Alert: (33 words)
agility, anginal, angling, angrily, gaining, gaiting, ganglia, girling, girning, glaring, grating, graying, ingrain, initial, intagli, lairing, nailing, nattily, railing, raining, ranging, ranting, rattail, ratting, ringgit, ringing, tailing, tilting, tinging, tinnily, tinting, trinity, yarning