Artificial intelligent assistant

undefendable

undeˈfendable, a.
  [un-1 7 b.]
  a. Of a place: that cannot be defended.

1931 W. S. Churchill World Crisis VI. viii. 126 Belgrade, the capital, stood actually upon the Danube at the frontier and was undefendable.

  b. Of a person = defenceless, defenseless a. 1.

1938 E. Bowen Death of Heart i. vi. 109 Her tears were like a flag lowered at once: she felt herself to be undefendable. 1977 W. M. Spackman Armful of Warm Girl 114, I never felt so undefendable and I didn't even know who you were.

Oxford English Dictionary

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