lost in thought

not aware of what is happening around you because you are thinking about something else I didn't answer right away because I was lost in thought.

Concentrating on or pondering over something. For example, Gwen didn't hear a word you said; she was lost in thought.

Name	Pronounced	Usage
Christal	KRIS-təl	English
MartÍN	mahr-TEEN	Spanish
Solon	-	Ancient Greek
'Adalya'	-	Biblical Hebrew
Malte	MAHL-tə (German)	Danish, Swedish, German
Derryl	DER-əl	English (Rare)