Artificial intelligent assistant

unexpressable

unexˈpressable, a. Obs.
  [un-1 7 b.]
  = unexpressible a.

1548 G. Wishart tr. Conf. Fayth xxii, We exulte and rejoyce with a myrth unexpressable in wordes. a 1586 Sidney Arcadia iii. x, As well consorted partes to such an unexpressable [1621 unexpressible] harmonie. 1607 Hieron Wks. I. 468 Now she..still beggeth with Him by sighes vnexpressable. 1652 Eliza's Babes 75 A felicity that fils our hearts with an unexpressable delight. 1683 E. Hooker Pordage's Mystic Div. Pref. 70 To the..unexpressabl refreshing of the..faithful Servants of Christ. c 1721 Mrq. Tullibardine in 10th Rep. Hist. MSS. Comm. App. I. 126 Those who find their account in unexpressable confusion.

Oxford English Dictionary

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