May 23, 2025 superior su̇-ˈpir-ē-ər 4 syllables common ‹ adjective. situated higher up: upper escaped by superior speedher superior memory adjective. of higher rank, quality, or importance a superior arterya genus is superior to a species adjective. courageously or serenely indifferent (as to something painful or disheartening) noun. one who is above another in rank, station, or office; especially: the head of a religious house or order noun. one that surpasses another in quality or merit noun. superscript › Origin Middle English, from Middle French, from Latin, comparative of superus upper, from super over, above.