a sinking feeling

(informal)

a feeling that something bad is going to happen I had that sinking feeling you get going into an exam you haven't studied for.

Name	Pronounced	Usage
Wiremu	-	Maori
Isaiah	[ai'zaiə]
Viatrix	-	Late Roman
Karlene	KAHR-leen	English
Mansur	-	Arabic, Turkish, Indonesian
Hedda	HED-dah	Norwegian, Swedish