[adjective] [not gradable] - of a star or starsa stellar explosionstellar light(informal) When used of people or their activities, stellar means of an extremely high standard.a stellar performance/player/teamthe stellar duo, Simon and GarfunkelHer career so far has been stellar.
STELLAR
Meaning of STELLAR in English
Cambridge English vocab. Кембриджский английский словарь. 2012