The word inequalities 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: 24
Highest Scoring Words With Friends™ Play In The Letters inequalities
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Seven Letter Word Alert: (35 words)
antique, auletes, aunties, elastin, eluants, eluates, eluents, ensuite, entails, equates, equines, ileitis, initial, inquest, inquiet, inulase, lateens, leanest, lenites, lineate, lunates, luniest, nailset, quieten, salient, sequela, sequent, siliqua, silique, sinuate, tensile, tequila, unities, utensil, utilise