Sure, positive, not doubting. / (obsolete) Determined; resolved. / Not to be doubted or denied; established as a fact. / Actually existing; sure to happen; inevitable. / Unfailing; infallible.

Having been determined but not specified.

(with of) Unnamed or undescribed members (of).

Obsolete spelling of certain

Obsolete spelling of certain

definitely, positively, without doubt

The state or quality of being certain.

(obsolete) certainly

Misspelling of certainty.

comparative form of certain: more certain