In general, words with opposite meanings are called antonyms. Is there a word that describes the subset of antonyms that are different only by a prefix where the prefix negates the meaning of the root word?
coldare antonyms, but don’t share a root and would not be described by the term I am looking for.
unpairedare antonyms and share the same root
paired. These words would be described by the term I am looking for.
Lost positives would be a special case of this type of word where only the negated sense of the word is in use, e.g.
disgruntledis a commonly used word, but
A bonus answer would point to a list of such negating prefixes.
There’s a book that might interest you about antonyms in English.
Antonyms in English: Construals, Constructions and Canonicity
by Steven Jones
There’s a whole chapter on the difference between “canonical antonym pairs” (such as good/bad) and what the author call “negated antonymous” words (such as good/not good) and if they’re an affixal or non affixal negation (such as not happy vs unhappy) . On page 151 the author call these pairs of words that differ only by their affix…