certain

Sure in one's mind, positive; absolutely confident in the truth of something.

I was certain of my decision.

[…] I think, nay, I may say that I'm sartain, we'll have a hurricane afore morning. It's not the first time I've cruised in these latitudes.

Not to be doubted or denied; established as a fact.

Now that more experiments have been run, the theory is certain and the argument is settled.

[…]the dreame is certaine, and the interpretation thereof ſure.

Sure to happen, inevitable; assured.

It is certain that Spain will reach the finals. / Spain is now certain to reach the finals. / Spain is now certain of a place in the finals.

Bankruptcy is the certain outcome of your constant gambling and lending.

Unfailing; infallible.

I have often wished, that I knew so certain a remedy in any other disease

Fixed; regular; determinate.

at certain intervals

Then ſaid the Lord vnto Moſes, Behold, I will raine bread from heauen for you: and the people ſhall goe out, and gather a certaine rate euery day, that I may proue them, whether they will walke in my Law, or no.

Having been determined but not specified.

Certain people are good at running.

One saint's day in mid-term a certain newly-appointed suffragan-bishop came to the school chapel, and there preached on “The Inner Life.”

Unnamed or undescribed members (of).

She mentioned a series of contracts, of which certain are not cited.

[…]certaine of the Jewes banded together[…]