SUPERCIL'IOUS, adjective [Latin superciliosus. See above.] 1. Lofty with pride; haughty; dictatorial; overbearing; as a supercilious officer. 2. Manifesting haughtiness, or proceeding from it; overbearing; as a supercilious air; supercilious behavior.
Source: Webster's 1828 American Dictionary ↗ · public-domain · returned verbatim, no AI