’It seems to promise pretty well,’ said Mr Ralph Nickleby, whose deliberate manner was strongly opposed to the vivacity of the other man of business.
Bless their hearts!’ in a most vivacious manner.
’Oh, I’m sure,’ returned Miss Ledrook, with considerable vivacity, ’if YOU can’t persuade him—’
With all the boldness of an original genius, he had struck out an entirely new course of treatment quite opposed to the usual method; his custom being, when he had gained the ascendancy over those he took in hand, rather to keep them down than to give them their own way; and to exercise his vivacity upon them openly, and without reserve.
Besides these, there was a roving-looking person in a rough great-coat, who strode up and down in front of the lamps, flourishing a dress cane, and rattling away, in an undertone, with great vivacity for the amusement of an ideal audience.
We blush to tell it; but his youthful spirits and vivacity getting, for the time, the better of his sad thoughts, he no sooner formed this resolution than he saluted Miss Squeers and the friend with great gallantry, and drawing a chair to the tea-table, began to make himself more at home than in all probability an usher has ever done in his employer’s house since ushers were first invented.
Add to this, that he was good-looking and intelligent, had a plentiful share of vivacity, was extremely cheerful, and accommodated himself in five minutes’ time to all John Browdie’s oddities with as much ease as if he had known him from a boy; and it will be a source of no great wonder that, when they parted for the night, he had produced a most favourable impression, not only upon the worthy Yorkshireman and his wife, but upon Nicholas also, who, revolving all these things in his…
There are no more uses of "vivacious" in the book.