Artificial intelligent assistant

unstressed

unˈstressed, ppl. a.
  (un-1 8.)

1883 H. Sweet in Trans. Philol. Soc. 212 Not only in most unstrest syllabls of polysyllabic words, but also in the unstrest monosyllabic words. 1927 W. Deeping Kitty ix. 118 There seemed to be comfort for him in those fields... So peaceful and unstressed. 1946 P. Bottome Lifeline ii. 17 The peasants..unstressed, simple people.

Oxford English Dictionary

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