guaranteed (adj.)

• ascertained
• assured
• attested
• betrothed
• bound
• certain
• certified
• committed
• compromised
• contracted
• covered
• decided
• dependable
• determinate
• determined
• engaged
• established
• fail-safe
• firm
• fixed
• harmless
• insured
• intended
• invulnerable
• obligated
• open-and-shut
• pledged
• promised
• proved
• reliable
• riskless
• secure
• secured
• set
• settled
• sound
• stable
• stated
• steady
• sure
• sworn
• tested
• tried
• trustworthy
• unhazardous
• warranted