Cer"tain*ty (?), n.; pl. Certainties (#). [OF. certainet'e.]
The quality, state, or condition, of being certain.
The certainty of punishment is the truest security against crimes.
A fact or truth unquestionable established.
Certainties are uninteresting and sating.
Clearness; freedom from ambiguity; lucidity.
Of a certainty, certainly.
© Webster 1913.