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long time

NOUN

blue moon

Synonyms

WEAK

ages forever and a day years

NOUN

donkey's years

Synonyms

WEAK

aeon all one's born days eternity forever and a day month of Sundays right smart spell time immemorial time out of mind years on end

From Roget's 21st Century Thesaurus, Third Edition Copyright © 2013 by the Philip Lief Group.