Word Network: びっくりする

A response or reaction to a stimulus, action, or statement. It can refer to a person's behavior in response to something, or a physical/chemical process where substances change.

A noun referring to one's internal feelings or emotions, such as joy, sorrow, or anger. It describes the psychological state or sentiment a person experiences in response to internal or external stimuli.

Surprised; startled.

Suddenly, unexpectedly