The definition of happiness is the state of joy, peace and tranquility.
A thousand years; millennium
An ideally perfect place, especially in its social, political, and moral aspects.
(Proper) The hereafter; heaven
The condition of being prosperous.
Find another word for millennium. In this page you can discover 16 synonyms, antonyms, idiomatic expressions, and related words for millennium, like: a thousand years, golden-age, thousand years of peace, happiness, serenity, millenary, utopia, millenium, jubilee, kingdom-come and paradise.