The word powderiness 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: 19
Highest Scoring Words With Friends™ Plays In The Letters powderiness
:
Seven Letter Word Alert: (75 words)
deniers, denoise, depones, deposer, deposes, depress, desires, despise, dewires, disowns, dispose, dossier, downers, downier, dowress, dowries, dowsers, drowses, endorse, episode, indorse, newsier, openers, penises, peonies, periods, persons, pioneer, poesies, ponders, powders, powered, preside, pressed, prisons, prowess, redness, reendow, reopens, repined, repines, reposed, reposes, resends, resides, resowed, respins, respond, rewinds, rewiped, rewipes, ripened, rosined, rowdies, senders, seniors, sinewed, snipers, snowier, soirees, spender, spewers, spewier, spiders, spinode, spinose, spondee, swipers, weiners, weirdos, widener, wieners, winders, wonders, worsens