The word uncomfortably 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: 30
Highest Scoring Words With Friends™ Plays In The Letters uncomfortably
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Seven Letter Word Alert: (48 words)
acronym, autonym, balcony, buoyant, butanol, calumny, cartful, cartoon, clamour, comfort, conform, contour, control, coolant, cornfly, coronal, cotylar, coulomb, country, courtly, crouton, crumbly, curably, factory, faculty, flouncy, flyboat, footbar, footman, formula, frontal, functor, locator, mutably, notably, octoban, oomancy, roomful, toolbar, toolman, tramful, trayful, truancy, truncal, tunably, unbalmy, uncomfy, unmoral