The word desirability 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: 19
Highest Scoring Words With Friends™ Play In The Letters desirability
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Seven Letter Word Alert: (93 words)
abiders, ability, airbeds, airiest, airside, albites, alibies, aridest, aridity, astilbe, astride, baiters, baldest, barites, barleys, beastly, bedirts, bedirty, bedlars, bedrail, bestrid, betrays, bilayer, biliary, birdies, bitsier, blasted, blaster, blister, brailed, braised, bridals, bridles, bristle, bristly, dailies, dairies, deliria, derails, details, dialers, dialyse, diaries, diarist, dietary, dilater, dilates, dirties, dirtily, disable, disrate, distyle, ditsier, driblet, ebriids, ileitis, irately, iridise, irisate, liaised, libated, libates, liberty, lyrated, rabidly, readily, realist, reality, rebaits, reblast, redials, retails, riblets, risible, saltier, seabird, sidebar, sidelit, siltier, slatier, stabled, stabler, strayed, stylier, tardily, tearily, tidiers, tirades, tiredly, trailed, triable, tribals, trysail