When something is teetering, it is in a precarious position or balance, ready to fall or tip over. Antonyms for more teetering include stable, steady, and secure. Stable means firmly established or not likely to change, while steady means not fluctuating or wavering. Secure means firmly fixed or safe from danger. Other antonyms for more teetering may include poised, balanced, certain, and secure, all of which suggest a sense of stability or equilibrium. Using these antonyms when describing something that is not teetering can make it seem more solid, reliable, and trustworthy.