antediluvian🔊

(biblical) Belonging or pertaining to, or existing in, the time prior to the great flood described in Genesis, or (by extension) to a great or destructive flood or deluge described in other mythologies. +

(by extension) Of animals and plants: long extinct; prehistoric.

(figurative, hyperbolic, chiefly humorous) Of a person or thing: very old; ancient. +

(figurative, hyperbolic, chiefly humorous) Of attitudes, ideas, etc.: extremely old-fashioned, especially to a laughable extent; antiquated. +

(biblical) A person who lived in the time prior to the great flood described in Genesis, especially one of the biblical patriarchs. +

(figurative, hyperbolic, chiefly humorous) A very old person.

(figurative, hyperbolic, chiefly humorous) A person with extremely old-fashioned attitudes, ideas, etc., especially to a laughable extent; a fogey or old fogey.