The word courageousness 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: 22
Highest Scoring Words With Friends™ Play In The Letters courageousness
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Seven Letter Word Alert: (78 words)
acerose, acerous, ancress, arouses, assures, canoers, careens, cargoes, carouse, cassons, cassoon, causers, censers, censors, censure, coarsen, corneas, coronas, corsage, cougars, courage, courses, creases, cresses, crosses, cussers, encases, encores, engross, enrages, ensears, ensures, gaseous, gassers, genuses, grasses, greases, grosses, grouses, guesser, guesses, necrose, negroes, noosers, onerous, oogenus, oranges, oregano, orogens, osseous, racoons, raucous, reasons, recanes, recuses, rescans, rescues, saucers, scourge, screens, scrooge, scrouge, seagoer, seances, seasons, secerns, secures, sensors, sooners, sources, sucrase, sucrose, surgeon, uncages, uncross, uncurse, uneager, ureases