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- So Boris was full of nervous vivacity all day.Book Ten — 1812 (61% in)
- They followed Prince Dolgorukov out into the corridor and met—coming out of the door of the Emperor's room by which Dolgorukov had entered—a short man in civilian clothes with a clever face and sharply projecting jaw which, without spoiling his face, gave him a peculiar vivacity and shiftiness of expression.Book Three — 1805 (55% in)
There are no more uses of "vivacious" in War and Peace.
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