The word gradualness 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™ Play In The Letters
Seven Letter Word Alert: (47 words)
adrenal, agendas, anglers, angular, arsenal, assuage, assured, asunder, dangers, dangler, dangles, degauss, desugar, enlards, galenas, ganders, gardens, garland, glassed, gnarled, gradual, granule, grassed, guldens, gunless, laagers, landers, langurs, largess, lasagne, launder, radulae, radulas, resands, sandals, sanders, sausage, sensual, slander, slanged, sludges, snarled, snudges, sugared, sundaes, undress, unseals