The word unhygienically 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™ Play In The Letters unhygienically
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Seven Letter Word Alert: (41 words)
agilely, alginic, allying, angelic, aniline, calling, cannily, cauline, ceiling, celling, channel, cingula, cleanly, culling, cyanine, enchain, glycine, guanine, hailing, hauling, healing, helical, hulling, hyaline, inanely, inching, incline, lancing, leaning, leching, lingual, nailing, unagile, unalign, unchain, unclean, uncling, unhinge, yealing, yeaning, yelling