Synonyms of well-defined

1 Syllable
plain, sharp
2 Syllables
clear-cut, clean-cut, lucent, sharp-cut, distinct, trenchant, obvious, lucid
3 Syllables
explicit, legible, straightforward, transparent, apparent, graspable, unblurred, well-marked, silhouetted, audible, precise
4 Syllables
unambiguous, definite
5 Syllables
comprehensible, intelligible, understandable, undubitable