apogee

Pronunciation: US [ˈæpədʒi] UK [ˈæpədʒiː]

Synonyms

n.	1. the time when something is at its most successful or important 2. the point farthest from the Earth that the Moon or a satellite reaches while it moves around the Earth

Beethoven's Ninth Symphony remains the apogee of the orchestral art.
Source: P. A. Scholes
This conversation we're having now..seems to me the apogee of bad taste.
Source: E. Bowen