Difference between Obvious and Axiomatic

OBVIOUS vs AXIOMATIC: ADJECTIVE

Evident without proof or argument
Of or relating to or derived from axioms
Containing aphorisms or maxims
Of, relating to, or resembling an axiom; self-evident.
Of or pertaining to an axiom; having the nature of an axiom; self-evident; characterized by axioms.
Of or pertaining to an axiom.
Obvious.

Being or standing in the way; standing or placed in the front.
Open; exposed to danger or accident.
Easily perceived and understood
Coming in the way; presenting itself as to be done.
Easily discovered, seen, or understood; plain; manifest; evident; palpable.
In zoology, plainly distinguishable; quite apparent: as, an obvious mark; an obvious stria: opposed -to obscure or obsolete.

Full of axioms or maxims; aphoristic.
Of the nature of an axiom, self-evident truth, or received principle; self-evident.

Manifest, Demonstrable, Plain, Big, Perceptible, Egregious, Axiomatic, Palpable, Salient, Visible, Overt, Conspicuous, Glaring, Evident, Apparent

Priori, Irrefutable, Tautological, Falsifiable, Unarguable, Incontrovertible, Apparent, Clear, Evident, Taken for granted, Self evident, Postulational, Axiomatical, Aphoristic, Obvious

Manifest, Demonstrable, Plain, Big, Perceptible, Egregious, Axiomatic, Palpable, Salient, Visible, Overt, Conspicuous, Glaring, Evident, Apparent

Priori, Irrefutable, Tautological, Falsifiable, Unarguable, Incontrovertible, Apparent, Clear, Evident, Taken for granted, Self evident, Postulational, Axiomatical, Aphoristic, Obvious

Parks, for obvious reasons, were a mostimportant source.
The reason for its rapid adoption is obvious.
Nor, for that matter, is it always obvious.
In other words, obvious statements will be ineffective.
RPM are obvious because retail prices are observable, while defections from a wholesale price agreement are less obvious because wholesale prices are private information.
You have pointed out some of the obvious, and some of the not so obvious, problems inherent in dealing with the devil!
But what is obvious to one is NOT so obvious to another.
It would be confusing for listeners if obvious changes in input data do not correspond with obvious changes in sonification output.
Some of these things are obvious but still need to be listed, others are not so obvious, but essential nonetheless.
So it helps to have identified the more obvious and less obvious contrasting characteristics among the specimen before creating your dichotomous key.