The word misremembered is playable in Words With Friends™, but 1 blank substituting for the letter 'm' is 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 misremembered
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Seven Letter Word Alert: (21 words)
bemired, bemires, berried, berries, birders, breeder, brimmed, derbies, derries, desirer, dimmers, emersed, immerse, members, misdeem, rebreed, redeems, redries, reedier, resider, seedier