The antonyms for the word "more obverse" can vary based on the context of the word. However, if we take the word obverse as meaning the front or the main side of something, the antonyms for "more obverse" can be "less front," "reverse," "backside," "underside," "rear," or "opposite side." These words all imply a position or direction opposite to the main side. Additionally, if we consider obverse as meaning the positive side or the favorable aspect of something, the antonyms can include "adverse," "negative," "opposing," "disadvantageous," "unfortunate," or "unfavorable." Hence, choosing an antonym for "more obverse" depends on the intended meaning of the word.