The quality of being a contranym or including contranyms.
2008 , BI Karaman, On contronymy, Contronymy, a phenomenon which has received much attention in recent years, has often been described as sense opposition at the micro-level.
2011, Tony Thorne , The 100 Words That Make The English, Today the same word can mean 'wholly', 'to a considerable extent' ('Quite the little madam, aren't we?') or '(only) to some extent', 'partially' or 'somewhat' ('feeling quite tired'), though theoretical linguists explain this slightly differently: 'At the micro-level the lexical unit represents a case for contronymy of antonymy type if it can be subjected to gradation and if it comprises at least two senses which are contradictory within one aspect.'
2013, Hye Seung Lee, Semantics of COM, Kronasser (1952) and Meid (1979) argue that language change results in the occurrence of contronymy in natural language.