An axiom is a principle widely accepted for its intrinsic merit, or one regarded as self-evidently true. A statement that is axiomatic, therefore, is one against which few people would argue.

AXIOMATIC definition: 1. obviously true and therefore not needing to be proved: 2. obviously true and therefore not…. Learn more.

The root word of axiomatic, axiom, derives from the Greek axioma, meaning "authority," or "that which is thought worthy or fit." We use it to describe statements that have the authority of truth …

AXIOMATIC meaning: 1. obviously true and therefore not needing to be proved: 2. obviously true and therefore not…. Learn more.

axiomatic - evident without proof or argument; "an axiomatic truth"; "we hold these truths to be self-evident"

AXIOMATIC definition: relating to or resembling an axiom ; self-evident | Meaning, pronunciation, translations and examples

pertaining to or of the nature of an axiom; self-evident; obvious. aphoristic. “Collins English Dictionary — Complete & Unabridged” 2012 Digital Edition © William Collins Sons & Co. Ltd. …

There are four meanings listed in OED's entry for the word axiomatic. See ‘Meaning & use’ for definitions, usage, and quotation evidence.