terrestrial
ter-res-tri-al
noun
An inhabitant of the Earth, often contrasted with aliens.
"The alien encountered a terrestrial."
adjective
Living or growing on land, rather than in water or air.
"Many insects are terrestrial creatures."
adjective
Relating to the planet Earth, its land, or its inhabitants.
"Scientists study terrestrial and extraterrestrial phenomena."
Thesaurus
Synonyms: tellurian, telluric, terrene, overland, onshore, sublunary, earthly, sublunar, worldly, temporal, secular, mundane
Antonyms: amphibious, aquatic