The word unquestioning 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™ Plays In The Letters unquestioning
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Seven Letter Word Alert: (36 words)
ensuing, igneous, ignites, innings, inosine, inosite, inquest, inquiet, intones, nesting, nonsuit, ousting, outguns, outings, outsung, queuing, quinine, quinone, quiting, quonset, quoting, sinning, stoning, suiting, sunning, tensing, tension, tenuous, tinning, tongues, tunings, unguent, unities, uniting, unquiet, unquote