Also found in: Dictionary, Thesaurus, Legal, Wikipedia.
Related to immemorial: since time immemorial

time immemorial

Long before one would be able to remember; the distant past. Our family line has presided over this land since time immemorial. Giant sea turtles have been coming to this spot to mate since time immemorial.
See also: immemorial, time

since time immemorial

since a very long time ago. (Literally, since time before recorded history.) My hometown has had a big parade on the Fourth of July since time immemorial. since time immemorial, the trees have blossomed each spring.
See also: immemorial, since, time

from/since time immemorial

for longer than anyone can remember Her family had farmed that land from time immemorial.
See also: immemorial, time

time immemorial

Also, time out of mind. Long ago, beyond memory or recall, as in These ruins have stood here since time immemorial, or His office has been on Madison Avenue for time out of mind. The first expression comes from English law, where it signifies "beyond legal memory," specifically before the reign of Richard I (1189-1199), fixed as the legal limit for bringing certain kinds of lawsuit. By about 1600 it was broadened to its present sense of "a very long time ago." The variant, first recorded in 1432, uses mind in the sense of "memory" or "recall."
See also: immemorial, time
References in classic literature ?
Every good heart must surely exult at so satisfactory an arrangement of an immemorial difficulty.
Tahiti is a lofty green island, with deep folds of a darker green, in which you divine silent valleys; there is mystery in their sombre depths, down which murmur and plash cool streams, and you feel that in those umbrageous places life from immemorial times has been led according to immemorial ways.
There are a couple of torn volumes somewhere; they have been lying about from time immemorial," added Alexandra.
All of our Princes and Rulers have grown upon this one bush from time immemorial.
He raised it from its immemorial resting place and weighed it in his hands.
In these three dances the dancers furnish their own music, which never varies; nor do the steps or figures vary, having been handed down from time immemorial.
The house retains its evil reputation, but the replanted vine is as orderly and well-behaved a vegetable as a nervous person could wish to sit under of a pleasant night, when the katydids grate out their immemorial revelation and the distant whippoorwill signifies his notion of what ought to be done about it.
That is the entire story--except that men's passions having subsided and reason having resumed its immemorial sway, it was confessed in Hillbrook that, considering the harmless and honorable character of his first commercial transaction under the new conditions, Silas Deemer, deceased, might properly have been suffered to resume business at the old stand without mobbing.
A wind, loosened from wild places far away, steals out to blow over dewy, star-lit, immemorial hills.
a phrase likewise of immemorial use on another occasion.
4) If we are to evolve new climate specific ways of building and thinking to create enviroments that are both ecologically sustainable and humanly satisfying, we must rediscover our immemorial, intuitive relationship with the elements.
From times immemorial, Hindus have believed in the diversity of community.
It has been part of Mediterranean and Spanish culture for time immemorial.
23 (ANI): President Pratibha Devisingh Patil on Tuesday asked expatriate Indian students to learn from the experiences of Mahatma Gandhi, and added that the quest for knowledge has been a basic characteristic of Indian ethos from time immemorial.
He said: "The climate's been changing since time immemorial.