Adjective
Not doubted; not called in question; indubitable; indisputable; as, undoubted proof; undoubted hero.
Source: Webster's dictionaryIt is a maxim, that those to whom everybody allows the second place have an undoubted title to the first. Jonathan Swift
I have resolved to demonstrate by a certain and undoubted course of argument, or to deduce from the very condition of human nature, not what is new and unheard of, but only such things as agree best with practice. Baruch Spinoza
It is a melancholy but an undoubted fact, that, even in the most thriving countries, part of the population annually dies of mere want. Not that all who perish from want absolutely die of hunger; though this calamity is of more frequent occurrence than is generally supposed. Jean-Baptiste Say
It is an undoubted truth, that the less one has to do, the less time one finds to do it in. One yawns, one procrastinates, one can do it when one will, and therefore one seldom does it at all. Philip Stanhope, 4th Earl of Chesterfield
The structure of a theoretical system tells us what alternatives are open in the possible answers to a given question. If observed facts of undoubted accuracy will not fit any of the alternatives it leaves open, the system itself is in need of reconstruction. Talcott Parsons
Americans of all persuasions are coming to the sad realization that our First Lady – a woman of undoubted talents who was a role model for many of her generation – is a congenital liar. William Safire