不得不 vs 只好 (forced to vs only option)

Forced, or just out of options?

Both mean "have no choice but to".
have no choice or option…不得不bù dé bù = forced to, by outside pressure (a strong "must").
to have no other option but…只好zhǐ hǎo = the only option left (resigned, "can only").

down下xiàheavy rain大雨dà yǔ，I / me我wǒhave no choice or option…不得不bù dé bùto take a taxi (in town)打车dǎ chē = "it poured, so I had to take a taxi."

I我wǒhave to不得不bù dé bùagree同意tóng yì。

I / me我wǒhave no choice or option…不得不bù dé bùto agree同意tóng yì = "I had no choice but to agree."

Practice

I had no choice but to agree: 我 ____ 同意。

没票méi piào(completed / change)了le，to have no other option but…只好zhǐ hǎoto return home回家huí jiā = "no tickets left, so we could only go home."

no tickets没票méi piào了le，can only只好zhǐ hǎogo home回家huí jiā。

to have no other option but…只好zhǐ hǎoto return home回家huí jiā = "could only go home."

Explore

Grammatically the two swap in most sentences — the cue decides: naked outside pressure leans 不得不, settling for what's left leans 只好.

Practice

Which stresses outside pressure forcing you (a strong “must”)?

Practice

Both mean roughly “have no choice but to”.

Key idea

have no choice or option…不得不bù dé bù = forced to (outside pressure, a strong must)
to have no other option but…只好zhǐ hǎo = the only option left (resigned, "can only")
Close synonyms; have no choice or option…不得不bù dé bù stresses obligation, to have no other option but…只好zhǐ hǎo last resort