be left hanging (in the air/in midair)

To remain unresolved or unaddressed. I don't think he's very knowledgeable on this topic—my very basic question was left hanging in the air.

Name	Pronounced	Usage
Jeremias	ye-re-MEE-ahs (German), YE-re-mee-ahs (Finnish)	German, Portuguese, Finnish
Flavianus	-	Ancient Roman
Sid	SID	English
Badri	-	Georgian
Ailwyn	['eilwin]
Erlea	-	Basque