The word disfavouring 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
Seven Letter Word Alert: (41 words)
adoring, advisor, aground, airguns, airings, angioid, arising, difuran, divings, divisor, donairs, dousing, dragons, driving, durians, fairing, favours, firings, fungoid, grounds, indigos, infusor, inroads, insofar, ordains, origins, raiding, raising, ravings, ridings, rousing, saviour, signora, soaring, souring, surfing, various, virgins, virions, viroids, voiding