supercilious adj. + Add to list US //ˌsupɝˈsɪɫiəs// UK //sˌuːpəsˈɪlɪəs// su·per·cil·ious SynonymsEtymology Synonyms disdainfulhaughtyimperiouslordlyoverbearingpridefulsneeringsnidesniffyswaggeringOrigin Learned borrowing from Latin superciliōsus (“haughty”).