1 absolute, accepted, apodictic or apodeictic, assumed, certain, fundamental, given, granted, indubitable, manifest, presupposed, self-evident, understood, unquestioned
2 aphoristic, apophthegmatic, epigrammatic, gnomic, pithy, terse
English Collins Dictionary - English synonyms & Thesaurus
If something is axiomatic, it seems to be obviously true.
FORMAL adj oft it v-link ADJ that
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