Sure-fire synonyms | phrases

Phrases with similar meaning for Sure-fire

• idiot-proof
• fail-safe

  dependable
• never-failing
• for sure
• for a fact
• on ice
• sure enough
• in the bag
• tried and tested
• goof-proof
• error-free
• sure-footed
• sure-enough
• beyond doubt
• on the cards
• bound to be
• free from doubt
• made certain
• cast-iron
• on the level
• spot on
• dead sure