The word disforested 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: 16
Highest Scoring Words With Friends™ Play In The Letters
Seven Letter Word Alert: (46 words)
defiers, defrost, derides, deserts, desired, desires, dessert, diester, dieters, dossier, dressed, drifted, editors, erotise, festers, fodders, foisted, foister, forests, forties, fosters, frosted, reddest, reedits, resided, resides, resifts, roisted, rosiest, sifters, soddier, soddies, softies, soirees, sortied, sorties, stereos, steroid, storied, stories, strides, strifes, teddies, tierods, toddies, tressed