“Retroussé” is a French loanword, coming directly from the French verb “retrousser.” The loanword is in the past participle form, so it means “tucked up.” This adjective describes a very specific shape of a nose; it’s slightly turned up at the end, in a charming fashion. A less whimsical descriptor for this shape would be “snub-nosed.” If you’re a writer in need of an adjective for a nose, try one of these: “aquiline”/”Roman” (like a beak of an eagle), “button” (small, round, slightly upturned), “hooked” (with a prominent curve), “flat” (with a broad ridge and nostrils), “Grecian” (straight with no curves or bumps), “Nubian” (with a broad ridge and wide nostrils).