杞gei2人jan4憂jau1天tin1

English

1. (lit.) like the man of 杞[Qi3] who feared the sky would fall (idiom)
2. to worry about something that is very unlikely to happen; literally: to worry that the sky might fall down
3. (fig.) to entertain groundless fears

粵語 — Cantonese

1. 過份擔心，擔心一啲唔會發生嘅事

Examples

• 邊有咁易世界末日吖，你唔使杞人憂天嘅。

  We all know the apocalypse is just a myth. You shouldn't worry too much.