5. Unfailing; infallible. I have often wished that I knew as certain a remedy for any other distemper. Mead.

6. Fixed or stated; regular; determinate. The people go out and gather a certain rate every day. Ex. xvi. 4.

7. Not specifically named; indeterminate; indefinite; one or some; — sometimes used independenty as a noun, and meaning certain persons. It came to pass when he was in a certain city. Luke. v. 12. About everything he wrote there was a certain natural grace und decorum. Macaulay. For certain, assuredly. — Of a certain, certainly.

Syn. — Bound; sure; true; undeniable; unquestionable; undoubted; plain; indubitable; indisputable; incontrovertible; unhesitating; undoubting; fixed; stated.

CERTAIN
Cer"tain, n.

1. Certainty. [Obs.] Gower.

2. A certain number or quantity. [Obs.] Chaucer.

CERTAIN
Cer"tain, adv.

Defn: Certainly. [Obs.] Milton.

CERTAINLY
Cer"tain*ly, adv.