Artificial intelligent assistant

mischanceful

misˈchanceful, a. Now arch. or poet.
  [f. mischance n. +-ful.]
  Unlucky, unfortunate.

1303 R. Brunne Handl. Synne 3924 Ȝyf þou were euer payde of myschaunceful þyng Þat befyl to any man. 1570 [see mischanced, quot. c 1470]. 1594 H. Helmes Gesta Grayorum (1688) 22 This mischanceful Accident..was a great Discouragement. 1872 Blackie Lays Highl. 202 Where wert thou when Sire Adam first Drew his mischanceful breath? 1875 Browning Aristoph. Apol. Wks. 1896 I. 734 Woe—woe! What man was born mischanceful thus!

Oxford English Dictionary

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