The word amicableness 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: 23
Highest Scoring Words With Friends™ Play In The Letters amicableness
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Seven Letter Word Alert: (56 words)
abscise, abseils, absence, aimless, aliases, ambsace, amiable, amnesia, amnesic, anaemic, animals, balance, baleens, balsams, baseman, basemen, beanies, beslime, cambial, caseins, cinemas, cleanse, embases, enables, enamels, encalms, encases, enseals, iceless, icemans, icemass, inseams, laminae, laminas, lesbian, license, malaise, malices, manacle, maniacs, manless, meanies, measles, menaces, nabales, nemesis, salamis, salines, scabies, scalene, seances, seminal, siamese, siemens, silanes, silence