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
Chelsea	CHEL-see	English
Elsie	['elsi]
Jenaro	he-NAH-ro	Spanish
ChloÉ	klo-E	French
Shea	SHAY	Irish
Cleisthenes	KLIES-thə-neez (English)	Ancient Greek (Latinized)