The word unappreciative 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: 29
Highest Scoring Words With Friends™ Play In The Letters unappreciative
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Seven Letter Word Alert: (77 words)
acerate, activer, airpipe, anaptic, apteria, arcuate, arenite, avarice, aviatic, cantrap, cantrip, captain, captive, capture, carinae, centaur, certain, citrine, crappie, cuneate, cuprene, cuprite, curtain, enteric, enticer, epicarp, epicure, epurate, eupneic, inciter, incurve, inepter, inertia, invitee, inviter, nautica, nippier, painter, parapet, patinae, peatier, percent, percept, pertain, petunia, picante, picrate, picrite, picture, precent, precept, prepuce, pretape, prevent, priapic, private, puritan, receipt, reenact, reinput, repaint, reunite, terpine, tippier, trainee, triaene, uncrate, unerect, unrivet, urinate, uterine, variant, variate, veinier, venture, veteran, vitrine