Synonyms/Hypernyms (Ordered by Estimated Frequency) of noun antediluvian

2 senses of antediluvian

Sense 1
antediluvian, antediluvian patriarch -- (any of the early patriarchs who lived prior to the Noachian deluge)
       => patriarch -- (any of the early biblical characters regarded as fathers of the human race)

Sense 2
ancient, antediluvian -- (a very old person)
       => oldster, old person, senior citizen, golden ager -- (an elderly person)

Antonyms of adj antediluvian

1 of 2 senses of antediluvian

Sense 2
antediluvian, antiquated, archaic -- (so extremely old as seeming to belong to an earlier period; "a ramshackle antediluvian tenement"; "antediluvian ideas"; "archaic laws")

INDIRECT (VIA old) -> new -- (not of long duration; having just (or relatively recently) come into being or been made or acquired or discovered; "a new law"; "new cars"; "a new comet"; "a new friend"; "a new year"; "the New World")

Similarity of adj antediluvian

2 senses of antediluvian

Sense 1
antediluvian, antediluvial -- (of or relating to the period before the biblical flood; "antediluvian man")

Sense 2
antediluvian, antiquated, archaic -- (so extremely old as seeming to belong to an earlier period; "a ramshackle antediluvian tenement"; "antediluvian ideas"; "archaic laws")
       => old (vs. new) -- (of long duration; not new; "old tradition"; "old house"; "old wine"; "old country"; "old friendships"; "old money")