The word pantheistic 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: 20
Highest Scoring Words With Friends™ Play In The Letters pantheistic
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Seven Letter Word Alert: (42 words)
achiest, aitches, aseptic, atheist, catnips, chasten, chipset, etchant, ethnics, haptics, hatpins, hepatic, ichnite, incites, inscape, inspect, instate, nictate, pachisi, panties, patches, patents, patient, patines, patties, pectins, pettish, pianist, picante, pietist, pinches, pitches, sphenic, spicate, spinach, statice, stipite, tetanic, tiepins, tiniest, tipcats, titanic