The word untimeliness 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: 19
Highest Scoring Words With Friends™ Play In The Letters untimeliness
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Seven Letter Word Alert: (47 words)
elitism, eluents, eminent, emulsin, enlists, ensuite, inlines, insulin, insults, intense, inulins, itemise, lenient, lenites, linemen, linnets, listens, luniest, minuets, minuses, minutes, missile, missuit, mistune, mueslis, munites, muslins, nemesis, nestles, netless, seitens, sestine, siemens, silents, similes, stimies, stimuli, sunnies, tensile, tieless, tinsels, tunnels, unities, unlists, unsmelt, utensil, utilise