Quick Thinking

noun a performance or speech that is done without preparation

adjective done without being planned or rehearsed

• The impromptu meeting was called to address the urgent issue.
• We decided to have an impromptu picnic in the park.
• Let's make an impromptu trip to the beach!
• His impromptu decision to quit his job surprised everyone.

noun the quality or state of being quick; swiftness

adjective quick or prompt in action or movement

• The quickness of her decision-making impressed the board members.
• I was amazed by the quickness of his reflexes during the game.
• I can't believe the quickness with which she shut down that argument.
• The quickness of his wit always kept his friends entertained.