Ill-informed about and Unfamiliar with

Unfamiliar with and ill-informed about are semantically related. In some cases you can use "Unfamiliar with" instead an adjective phrase "Ill-informed about".

Unfamiliar with adjective - Having little or no knowledge of.

Ill-informed about and unfamiliar with are semantically related. Sometimes you can use "Ill-informed about" instead an adjective "Unfamiliar with".