The word trivialised 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: 17
Highest Scoring Words With Friends™ Play In The Letters
Seven Letter Word Alert: (49 words)
adverts, adviser, airiest, airside, aridest, astride, avidest, dailies, dairies, deliria, derails, details, devisal, dialers, diaries, diarist, dilater, dilates, dirties, disrate, ditsier, diverts, drivels, estival, ileitis, ilvaite, iridise, irisate, liaised, livider, realist, redials, retails, revisit, rivaled, saltier, sidelit, siltier, slatier, starved, stivier, strived, tidiers, tirades, trailed, travels, trivial, veritas, visited