1 : characterized by certainty or security; "a tiny but assured income"; "we can never have completely assured lives"
2 : not counterfeit or copied; "an authentic signature"; "a bona fide manuscript"; "an unquestionable antique"; "photographs taken in a veritable bull ring"
adverbe
1 : totally and definitely; without question
2 : in a manner or to a degree that could not be doubted