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Definition of immemorial

immemorial

/ˌɪm.əˈmɔːr.i.əl/
im · me · mo · ri · al
Adverb:immemorially
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immemorial Lexical Profile

immemorial Game Scores & Validity

• adjective

1

Originating in the distant past; so old as to be beyond the reach of memory, tradition, or historical record.

Example

"Local fishermen have navigated these coastal waters using the same traditional methods since time immemorial."

Synonyms
View all synonyms for immemorial
Antonyms
View all antonyms for immemorial

Word Nuance & Usage

Most commonly encountered as a postpositive adjective in the fixed phrase 'since time immemorial' (or 'from time immemorial'), meaning for an extremely long time.

• Rhymes for immemorial

• Nearby Words

immediacy
immediate
immediately
immemorial
immense
immensely
immenseness

Word Origin & Etymology

Borrowed in the early 17th century from Medieval Latin immemorialis, formed from the assimilative prefix in- ('not') and memorialis ('belonging to memory'), originally used in English law to denote customs predating the reign of King Richard I in 1189.

Cite this Entry

Wordmom. (2026). Definition of Immemorial. In Wordmom Dictionary. Retrieved Nov 5, 2026, from https://wordmom.com/dictionary/immemorial
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