The word freakishness 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 freakishness
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Seven Letter Word Alert: (40 words)
arsheen, arshine, arshins, ensears, faeries, finesse, fishers, freesia, freshen, hankers, hankies, harkens, harness, hearken, hearses, heifers, heiress, hernias, hissers, kaisers, kashers, kinases, kineses, kissers, refines, reshake, reshine, sassier, shakers, shakier, sherifs, shiners, shrieks, shrikes, shrines, shrinks, sinkers, snakier, snakish, sneaker