lost for words

unable to think of something to say at a loss for words Chris was lost for words at Kathy's incredible rudeness.

Usage notes: usually said because something has surprised you

Name	Pronounced	Usage
Elior	-	Hebrew
Carlito	kahr-LEE-to (Spanish)	Spanish, Portuguese
DÁIrÍNe	-	Irish
Steve	[sti:v]
Tavish	-	Scottish
AytaÇ	-	Turkish