Of a time of day or season (esp. summer): well advanced; fully come, complete. Cf. high day, n.1 2, high noon, n. 1, high season n. at compounds 4.

Belonging to the latter part of a particular historical, cultural, or developmental period.

Advanced; situated ahead in time, space, or succession. Obsolete.

Far advanced (in time), late. Obsolete. rare.

Chiefly in predicative use. Of the day, night, etc.: greatly advanced in its course; that has grown late.

Far on in the course of life or time.

Characterized by lateness, or tending to appear late; of late appearance or development.