Synonyms: incontrovertible, demonstrable
Definition: necessarily or demonstrably true
Usage: demonstrable truths
Similar words: incontestable, incontestible
Definition: incapable of being contested or disputed
Synonyms: demonstrable, provable
Definition: capable of being demonstrated or proved
Usage: obvious lies; a demonstrable lack of concern for the general welfare; practical truth provable to all men- Walter Bagehot
Similar words: obvious
Definition: easily perceived by the senses or grasped by the mind
Usage: obvious errors