The word inauspiciously 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: 26
Highest Scoring Words With Friends™ Play In The Letters inauspiciously
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Seven Letter Word Alert: (37 words)
acyloin, auspicy, caisson, calypso, casinos, consuls, cousins, cupolas, cupulas, inclasp, isospin, liaison, nicosia, noisily, oilcans, passion, piously, pliancy, psionic, saucily, silicas, silicon, sinuous, soapily, socials, spicily, spicula, spinals, spinous, spousal, unclasp, unclips, uncoils, unplays, unsoapy, upsilon, yaupons