noun ·Rare ·Advanced level

Definitions

Noun

1. 1
   The property of being from the planet Earth. uncountable
2. 2
   Adaptation to living on the ground (rather than in the trees or seas) uncountable

Antonyms

All antonyms

extraterrestriality

Etymology

From terrestrial + -ity.

Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.