undoubting

Undoubting is an adjective used to describe a person or belief characterized by a lack of doubt or hesitation. It conveys a high level of certainty or steadfast conviction, and may apply to attitudes, decisions, or beliefs that are held firmly.

Rooted in the prefix un-, meaning not, and the present participle of doubt, the word has been part of English since the early modern period. It is commonly used in formal or literary contexts to emphasize resolute assurance rather than mere confidence.

In use, undoubting often connotes strength of will or faith, but it can also imply uncritical acceptance or resistance to reconsideration. The term is typically evaluated by its context, as undoubting statements may reflect principled certainty or, conversely, dogmatic rigidity.

Related concepts include certainty, conviction, confidence, and doubt. In discussions of epistemology and psychology, undoubting can be contrasted with doubt, skepticism, or cautious reasoning to illuminate different styles of belief formation.