The word coincidently 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: 24
Highest Scoring Words With Friends™ Play In The Letters coincidently
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Seven Letter Word Alert: (24 words)
colicin, conceit, condyle, connect, contend, cycloid, cyclone, deictic, dicotyl, diction, dicycle, dioecic, diynone, edition, icecold, incited, incline, inocyte, intoned, lection, nondiet, notedly, noticed, tinnily