Plural of antonymy; the state or relation of being antonymous, or instances of antonymous relationships between words.
From antonymy (the noun form meaning the relationship or quality of being antonymous) plus the regular English plural '-ies.' The base word antonymy derives from antonym with the abstract noun suffix '-y,' creating a noun for the concept itself.
The concept of antonymies is central to how our brains organize language! Cognitive scientists have found that we store antonym pairs together in memory—knowing one word actually helps us understand its opposite faster, which is why antonymic pairs are so powerful in learning.
Complete word intelligence in one call. Free tier — 50 lookups/day.