upper·mostBrE/ˈʌpəməʊst/NAmE/ˈʌpərmoʊst/adjective[usually before noun](formal) higherornearerthetopthanotherthings最高的;最上端的;最上面的◆theuppermostbranchesofthetree树顶端的枝桠[not usually before noun]moreimportantthanotherthingsinaparticularsituation最重要;最关键◆Thesethoughtswereuppermostinmymind. 我心里想的最多的就是这些事。