noun
Refers to a sudden upward movement, often used for prices, values, or physical jumping. Common in economic contexts.
株価の急な跳ね上がりに驚いた。
I was surprised by the sudden jump in stock prices.
猫が
The cat made a jump from the table.
noun
rashness; hothead
Describes impulsive, reckless behavior or a person who acts without thinking. Often used critically.
彼の跳ね上がりには手を焼いている。
I'm at my wits' end with his rashness.
あいつは跳ね上がりだから、何をしでかすかわからない。
He's a hothead, so you never know what he might do.