The word sunbathers 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: 17
Highest Scoring Words With Friends™ Play In The Letters sunbathers
:
Seven Letter Word Alert: (33 words)
absents, abusers, anthers, banters, bashers, basters, bathers, breasts, breaths, brushes, bursate, busters, butanes, harness, hastens, haunter, hunters, natures, rashest, rebaths, resnubs, saunter, shunter, subnets, sunbath, sunhats, sunstar, trashes, turbans, unearth, unrests, unseats, unshare