The term "battle-scarred" refers to something that bears the marks of a difficult or trying experience. Some synonyms for this word include "worn," "weathered," "tarnished," "gritty," and "war-torn." "Worn" refers to something that has been used frequently and shows signs of wear and tear. "Weathered" implies something that has been exposed to the elements and has acquired a rugged, aged appearance. "Tarnished" means something that has lost its shine or luster due to exposure to the elements or wear and tear. "Gritty" describes something that is rough or tough, while "war-torn" specifically refers to something that bears the marks of a military conflict. All of these words convey a sense of hardship and struggle.