The word depilating 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: 18
Highest Scoring Words With Friends™ Play In The Letters depilating
:
Seven Letter Word Alert: (36 words)
aligned, anilide, dealign, dealing, dialing, dieting, digital, diptail, editing, elating, eliding, gelatin, genital, glinted, ignited, intagli, leading, leaping, ligated, lignite, painted, patined, pealing, pelting, pentail, pigtail, pingled, pintail, plaited, planted, plating, tagline, tailing, tailpin, tangled, tingled