Not precisely determined or known; uncertain
Indistinctly heard; faint.
In doubt; not clear or definite; ambiguous
Find another word for demonstrable. In this page you can discover 24 synonyms, antonyms, idiomatic expressions, and related words for demonstrable, like: evident, deducible, verifiable, ascertainable, conclusive, provable, vague, obscure, undemonstrable, distorted and unverifiable.