diluvian
Adjective
Meaning
Of or pertaining to a deluge, esp. to the Noachian deluge; diluvial; as, of diluvian origin.
Source: Webster's dictionarySynonyms
diluvial
aboriginal
classic
medieval
rain
colonial
rainfall
primitive
fossil
archaic
primordial
patriarchal
torrential
primeval
antediluvian
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