In official titles: highest in rank or authority, chief, head. Now chiefly historical.

Of a person or his or her attributes: of exalted rank, status, dignity, or estimation. Also of a person's reputation or position in society: exalted…

That ranks before others in virtue of longer service or tenure of a position; superior to others in standing. the senior service: the navy as…

Superior in rank, position, or power (to someone or something else); of a higher order.

Military. Of an officer: holding a high rank.