The word hellenistical 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 hellenistical
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Seven Letter Word Alert: (66 words)
achenes, achiest, aitches, alethic, alleles, allelic, anthill, atheise, cantles, castile, cellist, chalets, chasten, chelate, chilies, chitlin, ciliate, cleanse, clients, elastic, elastin, elicits, entails, entices, ethanes, ethical, ethnics, halites, helical, helices, hellcat, ichnite, illites, incites, inhales, install, instill, ischial, italics, laciest, laicise, lancets, latches, lateens, leaches, leanest, lenites, lentils, license, lichens, lineate, lintels, nailset, salient, satchel, scalene, shellac, silence, silicle, stencil, tallies, tallish, teaches, techies, tellies, tensile