The word unrealised 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: 14
Highest Scoring Words With Friends™ Play In The Letters unrealised
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Seven Letter Word Alert: (50 words)
aediles, aniseed, asunder, dealers, dearies, denials, deniers, derails, dialers, diurnal, dualise, duelers, durians, eluders, endears, endures, enlards, ensured, insular, insured, inulase, landers, launder, leaders, leaners, learned, leisure, lenders, linseed, nailers, readies, realise, redeals, redials, redline, relined, relines, renails, residue, sandier, sardine, slander, slender, snailed, snarled, sundial, unaired, unideal, unreels, urinals