enantioseme means A seme with polysemy of the type where at least one pair of its meanings are opposite to each other. Lexicurio rates it Sui generis — a strength score of 95 out of 100.
Etymology
By surface analysis, enantio- + seme.
noun
- A seme with polysemy of the type where at least one pair of its meanings are opposite to each other.“Near-synonyms: autoantonym, auto-antonym, autantonym; contronym, contranym”