ob·verse 
(ŏb-vûrs, əb-, ŏbvûrs′)
(ŏb-vûrs, əb-, ŏbvûrs′)adj.
1. Facing or turned toward the observer: the obverse side of a statue.
2. Serving as a counterpart or complement.
n. (ŏbvûrs′, ŏb-vûrs, əb-)
1. The side of a coin, medal, or badge that bears the principal stamp or design.
2. The more conspicuous of two possible alternatives, cases, or sides: the obverse of this issue.
3. Logic The counterpart of a proposition obtained by exchanging the affirmative for the negative quality of the whole proposition and then negating the predicate: The obverse of "Every act is predictable" is "No act is unpredictable."
[Latin obversus, past participle of obvertere, to turn toward; see OBVERT.]
ob·versely adv.
obverseobverse (top) and reverse (bottom) of a Polish zloty coin