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most ancient

ADJECTIVE

old, often very old

Synonyms

STRONGEST

age-old antique archaic hoary old-fashioned timeworn venerable

STRONG

aged antediluvian bygone elderly fossil oldie relic remote

WEAK

antiquated back number been around creaky early few miles on lot of mileage moth-eaten obsolete old goat older out-of-date outmoded primal primeval primordial rusty superannuated worse for wear

Antonyms

STRONGEST

current fresh modern new

STRONG

young

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Severe flooding has seen a library temporarily moved to a building that is considered a gateway to one of the most ancient sites in Ulster.

From BBC • May 28, 2026

But according to the “NOVA” presentation “Mammal Origins,” our most ancient ancestors existed as long ago as 270 million years.

From The Wall Street Journal • Feb. 10, 2026

These rocks are the oldest known on the Australian continent and rank among the most ancient rocks ever discovered on Earth.

From Science Daily • Jan. 10, 2026

Olfaction is the most ancient of animal senses, said Catherine Price, a behavioral ecologist at the University of Sydney in Australia.

From Los Angeles Times • Mar. 1, 2024

There is something intrinsically good-natured about all symbiotic relations, necessarily, but this one, which is probably the most ancient and most firmly established of all, seems especially equable.

From "The Lives of a Cell" by Lewis Thomas