Cocksure and Ill-advised

Cocksure adjective - Displaying or marked by rude boldness.

Ill-advised and cocksure are semantically related. In some cases you can use "Ill-advised" instead an adjective "Cocksure".

Ill-advised adjective - Showing poor judgment especially in personal relationships or social situations.

Cocksure and ill-advised are semantically related. Sometimes you can use "Cocksure" instead an adjective phrase "Ill-advised".