Synonyms of axiomatic

2 Syllables
certain, given, grass-roots, grassroots, obvious
3 Syllables
understood, assumed, accepted, manifest, proverbial, evident
4 Syllables
absolute, unquestioned, aphoristic, fundamental, substrative, self-evident, attestable, presupposed, evincible, demonstrable
5 Syllables
apothegmatic, indubitable, axiological