The word favorableness 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: 25
Highest Scoring Words With Friends™ Plays In The Letters favorableness
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Seven Letter Word Alert: (73 words)
abalone, abasers, abrases, absolve, areolae, areolas, areoles, arsenal, balafon, baleens, banaler, beavers, beefalo, beslave, blesser, boranes, boreens, braless, bravoes, earless, earlobe, enabler, enables, enolase, enrobes, enseals, ensears, enslave, fanbase, flavone, flavors, flenser, flenses, forseen, lassoer, laveers, leaners, leasers, leavens, leavers, loafers, loaners, nabales, oarless, observe, obverse, oneself, orleans, oversea, reasons, rebales, rebases, rebless, reloans, resales, resaves, reseals, resoles, resolve, reveals, salvers, savable, sealers, servals, several, slavers, sleaves, slovens, solvers, veneral, verbals, verbena, verbose