The word deservingness 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 deservingness
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Seven Letter Word Alert: (69 words)
degrees, deniers, derives, deserve, designs, desires, deveins, devisee, deviser, devises, digress, dinners, diverge, diverse, dresses, endings, endives, engined, engines, ensigns, enviers, evening, genders, geneses, genesis, greened, greisen, grieved, grieves, grinned, ingress, inverse, needers, needier, needing, nerving, redness, reeving, regives, reigned, rending, reneged, reneges, reseeds, resends, resides, resigns, revenge, revised, revises, sedgier, seeders, seedier, seeding, senders, sending, sensing, serving, severed, signees, signers, singers, sinners, sneered, veering, vending, veneers, versine, versing