sǐ​huó

life or death

死活 sǐ​huó
life or death noun
the state of living or dying; fate or destiny

He only cares about himself and completely ignores the well-being of others.

no matter what adverb
anyway; stubbornly (often used in negative sentences to mean 'simply won't')

No matter how much I tried to persuade him, he simply wouldn't agree.

Frequency

Movie subtitles
4.17 per million appears in 2% of films
Written text
3.77 per million

Sources

Definitions
CC-CEDICT