na-adjective
at the point of death; almost dead; about to die
Describes a state where someone or something is very close to dying. Often used hyperbolically for extreme conditions.
事故で彼は死にそうな状態だった。
He was in a state close to death after the accident.
この花は水がなくて死にそうだ。
This flower is almost dead from lack of water.
na-adjective
at the limit (of pain, hunger, etc.); dying of
Used figuratively to express an extreme degree of a negative physical or emotional state, such as hunger, pain, or exhaustion.
お腹が空いて死にそうだ。
I'm so hungry I could die.
痛くて死にそうだった。
It hurt so much I thought I was going to die.