1. (adj)high-level, high-ranking, upper-level at an elevated level in rank or importance Synonyms: high-level, high-ranking, high-altitude, upper-level Antonyms: low, inferior
2. (adj)high-level, high-altitude occurring at or from a relative high altitude Synonyms: high-level, high-ranking, high-altitude, upper-level Antonyms: low, inferior