(imp. & p. p.) of Test.

ascertained assured attested certified committed confirmed constant decided dedicated dependable determinate determined devoted established faithful faithworthy fast fixed guaranteed in the bag incorruptible inviolable made sure nailed down on ice open-and-shut proved proven reliable responsible secure set settled stated staunch steadfast straight sure to be trusted tried tried and true TRUE trustable trustworthy trusty unfalse unperfidious untreacherous verified warranted