IMPROMPTU

A. Offhand

B. Unimportant

C. Unreal

D. Effective

Answer: Option A

Solution(By Examveda Team)

Offhand : without previous thought or consideration.
Unimportant : lacking in importance or significance.
Unreal : imaginary or illusory.
Effective : successful in producing a desired or intended result.
Impromptu : done without being planned or rehearsed.


Synonym of Impromptu is Offhand