The word deviationism 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: 21
Highest Scoring Words With Friends™ Play In The Letters deviationism
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Seven Letter Word Alert: (56 words)
adonise, advents, amidone, animist, animose, anodise, atomise, avidest, daemons, destain, detains, deviant, diamine, diatoms, diimine, diosmin, divines, domains, donates, doviest, edition, endmost, evasion, imidine, indites, inmates, inosite, instead, invades, invited, invites, iodines, iodites, ionised, maidens, mastoid, medians, mindset, miniate, misdate, misdone, misedit, misvote, moisten, motives, naivest, natives, sainted, sideman, stained, stimied, tandems, vainest, visited, vitamin, vomited