certitude

/ˈsər-tə-ˌtüd/

Middle English, from Late Latin certitudo, from Latin certus

noun

  1. the state of being or feeling certain

  2. certainty of act or event

  3. something that is certain : certainty

certainty certitude conviction mean a state of being free from doubt. certainty and certitude are very close; certainty may stress the existence of objective proof , while certitude may emphasize a faith in something not needing or not capable of proof.