never

A nonexistent day; a day that will never come.

Absolutely not.

It is not important; do not fret; used to reassure or comfort the person to whom it is said.

Do not concern yourself with it; it is none of your business.

Of a need for a decision, an opportunity, etc.: arising at the present time and requiring action to be taken immediately, or not at all.

I have something very surprising to say; you won't be able to guess what I'm about to say.