Antonyms of adj axiomatic

1 of 3 senses of axiomatic

Sense 1
axiomatic, self-evident, taken for granted (predicate) -- (evident without proof or argument; "an axiomatic truth"; "we hold these truths to be self-evident")

INDIRECT (VIA obvious) -> unobvious -- (not immediately apparent; "in mathematical science connections are exhibited which...are extremely unobvious"- A.N.Whitehead)

Similarity of adj axiomatic

3 senses of axiomatic

Sense 1
axiomatic, self-evident, taken for granted (predicate) -- (evident without proof or argument; "an axiomatic truth"; "we hold these truths to be self-evident")
       => obvious (vs. unobvious) -- (easily perceived by the senses or grasped by the mind; "obvious errors")

Sense 2
axiomatic, aphoristic -- (containing aphorisms or maxims; "axiomatic wisdom")

Sense 3
axiomatic, axiomatical, postulational -- (of or relating to or derived from axioms; "axiomatic physics"; "the postulational method was applied to geometry"- S.S.Stevens)