The word revivalisms 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
Seven Letter Word Alert: (30 words)
aimless, airless, armless, liaises, mailers, marvels, massive, misaver, missile, realism, remails, resails, revival, rimless, sailers, salvers, savvier, savvies, serials, servals, silvers, similar, similes, siriema, slavers, slimier, slivers, smilers, smilier, verisms