English Etymology From a- + chiral. Pronunciation Audio (US):(file) Adjective achiral (not comparable) (geometry, physical chemistry) superimposable on its mirror image; amphichiral Synonyms nonchiral Antonyms chiral Derived terms achirality Translations Translations Finnish: ei-kiraalinen, akiraalinen German: achiral Polish: a-chiralny Anagrams Archila, rachial Wikiwand - on Seamless Wikipedia browsing. On steroids.