tested (adj.)

• ascertained
• assured
• attested
• certified
• committed
• confirmed
• constant
• decided
• dedicated
• dependable
• determinate
• determined
• devoted
• established
• faithful
• fast
• fixed
• guaranteed
• incorruptible
• inviolable
• open-and-shut
• proved
• proven
• reliable
• responsible
• secure
• set
• settled
• stated
• staunch
• steadfast
• straight
• sure
• tried
• true
• trustworthy
• trusty
• verified
• warranted