The word unavailabilities cannot be made in Words With Friends™. It is 16 letters long, too long to fit on a WordsWithFriends board (15 letters max).
Highest Scoring Words With Friends™ Plays In The Letters unavailabilities
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Seven Letter Word Alert: (77 words)
ablates, abluent, ablutes, abstain, abulias, abusive, albinal, albites, alibies, alluvia, astilbe, aunties, aviates, ballast, ballets, billets, bullate, bullets, bullies, butanes, elastin, eluants, eluvial, entails, estival, ileitis, illites, ilvaite, initial, install, instill, inulase, invites, labials, labiate, lentils, lesbian, libates, lintels, livable, lunates, luniest, nabales, nailset, naivest, natives, nebulas, netball, salable, salient, savable, sealant, sinuate, subvein, subvent, sultana, sunbelt, tableau, tallies, tunable, unabate, unbaits, unbales, unbelts, unblest, unities, unveils, utensil, utilise, uveitis, vainest, valiant, valuate, vanilla, villain, visible, vitelli