The word liberalists 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: 16
Highest Scoring Words With Friends™ Play In The Letters liberalists
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Seven Letter Word Alert: (57 words)
abseils, airiest, airless, albites, alibies, artless, astilbe, baiters, ballets, barites, basters, billets, bitsier, blaster, blister, braille, braises, braless, breasts, bristle, illites, irisate, liaises, libates, liberal, literal, rallies, realist, rebaits, rebills, reblast, relists, resails, retails, retills, ribless, riblets, rillets, risible, sailers, saltier, satires, serials, sillier, siltier, slaters, slatier, stabler, stables, stellar, stiller, tallier, tallies, tillers, trellis, triable, tribals