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/ˈhaɪ ˈlɛv.əl/ · adjective
Taking place or existing at a high level, altitude or elevation..
It remains a key part of the busy Strathclyde railway system, with its high-level platforms served by trains to Lanarkshire, Ayrshire and England, and its low-level platforms a key artery at the heart of the busiest commuter network outside London.
high-level conference
Within 22 minutes of the high-level decision at 1.38 a.m. on the Sunday morning to withdraw the electric trains, a special control had been established at Glasgow North headquarters to organise the return to steam working.
"To begin, a need or want is simply a broad definition of the overall requirements: the high-level description, the 30,000-foot view, and so on, of the problem without identifying any specifics." https://www.google.com/books/edition/Additive_Manufacturing_Handbook/H1kkDwAAQBAJ?hl=en&gbpv=1&pg=PT92
Use high-level when its meaning, tone and grammar fit the full sentence. A synonym is not always a direct replacement.
High-level means Taking place or existing at a high level, altitude or elevation..
Common synonyms include high, high-ranking, upper-level, superior.
Possible antonyms include low-level.
It remains a key part of the busy Strathclyde railway system, with its high-level platforms served by trains to Lanarkshire, Ayrshire and England, and its low-level platforms a key artery at the heart of the busiest commuter network outside London.
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