In·con`tro·ver'ti·ble adjective Not controvertible; too clear or certain to admit of dispute; indisputable. Sir T. Browne. -- In*con`tro*ver'ti*ble*ness , noun -- In*con`tro*ver'ti*bly , adverb Found on http://www.encyclo.co.uk/webster/I/37
irrefutableadjective impossible to deny or disprove; `incontrovertible proof of the defendant`s innocence`; `proof positive`; `an irrefutable argument` Found on https://www.encyclo.co.uk/local/20974