The word repeatedly 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: 17
Highest Scoring Words With Friends™ Plays In The Letters
Seven Letter Word Alert: (33 words)
adepter, adeptly, alerted, altered, deerlet, delayer, deleter, deplete, layered, lyrated, pearled, petaled, petered, pleader, pleated, predate, predeal, prelate, prelaty, pteryla, redealt, redtape, related, relayed, repayed, replate, replead, repleat, replete, retaped, retyped, tapered, treadle