Die-hard and Old guard

Die-hard adjective - Tending to favor established ideas, conditions, or institutions.

Old guard and die-hard are semantically related. In some cases you can use "Old guard" instead an adjective phrase "Die-hard".

Old guard noun - A faction that is unwilling to accept new ideas.

Die-hard and old guard are semantically related. Sometimes you can use "Die-hard" instead an adjective phrase "Old guard".