Su·per·cil·i·ous a. Lofty with pride; haughty; dictatorial; overbearing; arrogant; as, a supercilious officer; asupercilious air; supercilious behavior. -- Su*per*cil*i*ous*ly, adv. -- Su*per*cil*i*ous*ness, n.
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superciliousness
n : the trait of displaying arrogance by patronizing those
considered inferior [syn: condescension, disdainfulness]