Leaved no trace refers to a situation where there is no evidence of something happening. The opposite of this phrase is 'left a trace.' When someone leaves a trace, it means there is evidence of their presence, actions, or movements. For instance, if someone leaves footprints, it means they left a trace. Other antonyms for leaved no trace include leave a mark, left a trail, left an imprint, left an impression, and caused a ripple. When something is left behind, it can be identified or traced, making it possible to know what happened. The opposite is true when something is not left behind, making it hard to know what occurred.