The word adaptabilities 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: 22
Highest Scoring Words With Friends™ Play In The Letters adaptabilities
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Seven Letter Word Alert: (61 words)
abettal, ablated, ablates, albites, aliased, alibies, apatite, aplasia, aplites, astilbe, baldest, baptise, baptist, batlets, battled, battles, bipedal, blasted, dailies, datable, dataset, details, diabase, dietist, dilates, diptail, disable, ditties, elitist, ileitis, labiate, latites, liaised, libated, libates, palates, palsied, patties, petabit, piebald, pietist, pilates, plaited, plastid, saltate, satiate, sidelit, slatted, slitted, spatial, spatted, spitted, spittle, stabled, stapled, stilted, stipite, tablets, tidbits, tidiest, tilapia