All 5 Uses of

impulsive
in
Tess of the d'Urbervilles

Her lip lifted slightly, though there was little scorn, as a rule, in her large and impulsive nature.†
Chpt 2 *

His father persisted in his conviction that a knowledge of a farmer's wife's duties came second to a Pauline view of humanity; and the impulsive Angel, wishing to honour his father's feelings and to advance the cause of his heart at the same time, grew specious.†
Chpt 4

Some of the dairy-people, who were also out of doors on the first Sunday evening after their engagement, heard her impulsive speeches, ecstasized to fragments, though they were too far off to hear the words discoursed; noted the spasmodic catch in her remarks, broken into syllables by the leapings of her heart, as she walked leaning on his arm; her contented pauses, the occasional little laugh upon which her soul seemed to ride—the laugh of a woman in company with the man she loves and has won from all other women—unlike anything else in nature.†
Chpt 4

She impulsively whispered to him— "Will you kiss 'em all, once, poor things, for the first and last time?"†
Chpt 4

impulsively = without forethought

Instead of answering, Tess, with tears in her eyes, impulsively faced in the direction in which she imagined South America to lie, and, putting up her lips, blew out a passionate kiss upon the snowy wind.†
Chpt 5

Definition:

action without forethought; or such a tendency