When we talk about "cracking down on" something, it's usually in reference to taking strict measures to control it. However, sometimes we might want to describe the opposite action - a more relaxed approach. Possible antonyms for "cracks down on" might include "letting up on," "easing restrictions," "relaxing rules," "softening stance," or "being lenient." These phrases imply a more permissive and forgiving attitude, rather than a rigid or unforgiving one. While sometimes it may be necessary to crack down on certain behaviors or activities, at other times a less confrontational approach can be more effective in achieving our goals.