The phrase "a thing about somethings" has several antonyms, each emphasizing a different aspect. Depending on the context, it could mean a preference, a dislike, a quirk, or an obsession. Antonyms for these meanings might include indifference, fondness, repulsion, normality, or detachment. In some cases, the phrase can imply some sort of idiosyncrasy, suggesting an antonym like generality or conformity. Other antonyms might include things like rationality, levity, or profundity, depending on the connotations of the phrase. Ultimately, the meaning of "a thing about somethings" is highly dependent on the specific context, and the antonyms will vary accordingly.