Die-hard and Hard line

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

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

Hard line noun - A firm and uncompromising stance or position.

Die-hard and hard line are semantically related. Sometimes you can use "Die-hard" instead an adjective phrase "Hard line".