никогда́

adverb

never; ever
never, nevermore (entails the meaning "always" or "for now on")
Я никогда́ ничего́ не де́лаю. I never do anything.
used in the following idiomatic expressions
никогда́ в жи́зни (не) never in one's life, never in one's born days; never as long as one lives
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никогда | Slovarish | Словарищ