The word destabilized 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 destabilized
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Seven Letter Word Alert: (45 words)
aediles, albites, alibies, astilbe, baddest, baldest, bedside, belated, betided, betides, biddies, blasted, bleated, blitzed, blitzes, dailies, daisied, deadest, debased, debated, debates, debited, deities, delated, delates, deleads, details, diazide, dieties, dilated, dilates, disable, edibles, laddies, laziest, liaised, libated, libates, sedated, sidelit, sizable, stabled, teazels, teazles, teddies