What is different from duìbùqǐ and bù hǎo yìsi?

[artdndz]

Hello. Can you help me? I want understand what is different from duìbùqǐ and bù hǎo yìsi?

Can you give me some example from real life?

Thanks.

[renzhe]

duìbùqǐ stresses that you've done someone wrong. bù hǎo yìsi stresses your embarrassment about the situation.

The first one is more appropriate if something serious happens. The second one is more appropriate for a faux-pas where no real harm was done. In many cases, both are perfectly fine.

[li3wei1]

duìbùqǐ can also be used to get someone's attention, or get someone to move out of the way

[count_zero]

Duibuqi if you step on someone's foot.

Buhaoyisi if you start eating before one of your guests arrive.

[Demonic_Duck]

不好意思 if you bump into someone on the subway by accident.

对不起 if you're late for a meeting.

They roughly correlate to "excuse me" and "sorry". You shouldn't use 对不起 unless you have a good reason to be sorry though.