The word susceptibility 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: 27
Highest Scoring Words With Friends™ Plays In The Letters susceptibility
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Seven Letter Word Alert: (55 words)
biscuit, bisects, bitsets, busiest, bustles, butties, celsius, cesspit, cubists, cubless, cultist, cupless, cutlets, elicits, elitist, ileitis, lucites, lutists, lutites, pelitic, pettily, pietist, pistils, pitless, publics, putties, sculpts, scuttle, septics, sluices, spicily, spicule, spittle, splices, stipite, stipule, stylets, stylise, stylist, styptic, sublets, sublist, subsect, subsite, subtest, subtype, suspect, testily, tipless, tipsily, tissuey, tubless, typists, utilise, utility