Synonyms of well-founded
- 1 Syllable
- strong
- 2 Syllables
- stabler, valid, proven, solid, stronger, strongest, puissant, stablest, factual, brick-wall
- 3 Syllables
- stabile, rock-solid
- 4 Syllables
- undistorted, heavy-duty, substantiated
- 5 Syllables
- unquestionable, legitimate