The word shamefacedness 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: 27
Highest Scoring Words With Friends™ Play In The Letters shamefacedness
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Seven Letter Word Alert: (40 words)
academe, achenes, amassed, amasses, ascends, ashamed, cheesed, cheeses, deafens, deashes, decanes, decease, decenes, defaces, defames, defence, defense, demeans, demesne, desmans, encased, encases, essence, facades, headman, headmen, madness, menaced, menaces, sadness, schemas, schemed, schemes, seances, secedes, sesames, shamans, sheafed, smashed, smashes