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
Roseanne	[rəu'zæn]
Vitalia	-	Italian (Rare)
Charity	['tʃæriti]
Vaughn	VAWN	Welsh, English
Josefine	yo-se-FEEN (Swedish), yo-ze-FEE-nə (German)	Swedish, Danish, Norwegian, German
Andrew	AN-droo (English)	English, Biblical