There are several antonyms for the word "burn road" that describe different types of road conditions. One such antonym is "smooth road," which conveys a level and even surface suitable for comfortable driving. Another antonym is "paved road," which suggests a solid, hard surface constructed with materials such as asphalt, concrete or brick. Meanwhile, "gravel road" is an antonym that describes a bumpy, uneven road made of loose stones or gravel. Finally, "dirt road" is an antonym that implies an unpaved, natural road, often found in rural areas, which can be dusty or muddy depending on the weather conditions.