Superior  —adj. 1 in a higher position; of higher rank. 2 a high-quality (superior leather). B supercilious (had a superior air). 3 (often foll. By to) better or greater in some respect. 4  written or printed above the line. —n. 1 person superior to another esp. In rank. 2 head of a monastery etc. (mother superior).  superiority n. [latin comparative of superus above]