Nouns

(n)Olympianan athlete who participates in the Olympic games
(n)Twelve Olympians, Olympian, Olympic goda classical Greek god after the overthrow of the Titans

Adjectives

(a)Olympian, Olympicof the region of Olympia in Greece or its inhabitants“Olympian plain”
(a)Olympianof or pertaining to the greater gods of ancient Greece whose abode was Mount Olympus“Olympian deities”