Refers to an animal whose existence is claimed but not scientifically proven, such as the yeti or Bigfoot. Often associated with the abbreviation UMA (Unidentified Mysterious Animal).
See also: ＵＭＡ
Some people believe in the existence of cryptids.
This program introduces cryptids from around the world.
UMA is a common abbreviation for 未確認生物, especially in pop culture and media. 未確認生物 is the full formal term.
Compound of 未確認 (unconfirmed) + 生物 (living creature). The term is a direct translation of the English word 'cryptid' and is used in similar contexts.