English Antonyms Practice Test 2

Impulsive : acting or done without forethought.
Cautious : (of a person) careful to avoid potential problems or dangers.
Considerate : careful not to inconvenience or harm others.
Clever : quick to understand, learn, and devise or apply ideas; intelligent.
Cunning : having or showing skill in achieving one's ends by deceit or evasion.

Antonym of Impulsive is Cautious