Not well-known and Unusual

Unusual and not well-known are semantically related. in not on the usual path topic. In some cases you can use "Unusual" instead an adjective phrase "Not well-known".

Unusual adjective - Noticeably different from what is generally found or experienced.

Not well-known and unusual are semantically related. You can use "Not well-known" instead an adjective "Unusual".

Nearby Words: unused, unusually