For the cocktail parties
antinomy [æn'tinohmee]
noun
(plural: -mies)
1
opposition of one law, principle, or rule to another; contradiction within a law
2
(Philosophy) contradiction existing between two apparently indubitable propositions; paradox
[ETYMOLOGY: 16th Century: from Latin antinomia, from Greek: conflict between laws, from anti- + nomos law]
antinomic [æntih'nomik] adjective
anti'nomically adverb(ial)