The word spiritualistic 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 spiritualistic
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Seven Letter Word Alert: (45 words)
aplitic, artists, aulists, autists, casspir, catsups, clipart, crustal, culprit, cultist, curials, curtail, italics, lutists, piarist, pistils, plastic, prussic, pulsars, purists, racists, rapists, rituals, rustics, satiric, scripts, sculpts, silicas, spastic, spicula, spirals, spirits, starlit, startup, statics, stipula, straits, stratus, tipcart, tipcats, titular, tsarist, uprisal, upstair, upstart