cryptoterrestrial

Fetched 2026-10-26 (cache).

Datamuse reports no synonyms or antonyms for this word.

Adjective

1. Relating to a technologically advanced [[civilization]] claimed to be [[hidden]] on the [[Earth]] and evidenced by [[UFO]]s.

Source: Wiktionary · CC BY-SA 4.0 (Wiktionary dump) · cached copy, not a rewrite.