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
Nayeli	-	Native American, Zapotec
Helena	he-LE-nah (German, Swedish, Norwegian, Danish, Polish), hay-LAY-nah (Dutch), HE-le-nah (Finnish)	German, Dutch, Swedish, Norwegian, Danish, Icelandic, Portuguese, Polish, Czech, Slovak, Finnish, Es
Kobina	-	Western African, Akan
Noah	['nəuə]
Jeptha	-	English (Archaic)
ArtŪRs	-	Latvian