adj unfailing; infallible.
2. certain ·noun a certain number or quantity.
3. certain ·noun certainty.
4. certain ·adv certainly.
5. certain ·adj fixed or stated; regular; determinate.
6. certain ·adj actually existing; sure to happen; inevitable.
7. certain ·adj not to be doubted or denied; established as a fact.
8. certain ·adj assured in mind; having no doubts; free from suspicions concerning.
9. certain ·adj determined; resolved;
used with an infinitive.
10. certain ·adj not specifically named; indeterminate; indefinite; one or some;
sometimes used independenty as a noun, and meaning certain persons.