The word upbraidings 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 upbraidings
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Seven Letter Word Alert: (30 words)
abiding, abusing, airguns, airings, arising, aspirin, biasing, birding, burping, daubing, draping, durians, pairing, parings, parsing, pausing, priding, pursing, raiding, raising, rasping, ridings, spading, sparing, spiring, sunbird, unbraid, ungrasp, unpairs, upbraid