The word panegyrical 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: 23
Highest Scoring Words With Friends™ Plays In The Letters
Seven Letter Word Alert: (45 words)
airplay, aligner, angelic, angrily, caliper, carinae, carinal, carnage, carping, clayier, claypan, clinger, cranial, glacier, glancer, glycine, gracile, inlayer, inplace, larceny, leaping, learing, panicle, pealing, pelagic, pelican, pingler, placing, plainer, playing, plenary, pliancy, praline, praying, prelacy, preying, realign, reaping, reclang, regalia, relying, repayal, replica, yealing, yelping