Today's Parola del Giorno is the noun l'idiosincrasía, which means strong dislike or aversion to something.

It is often used with the preposition per and the verb avere: avere un’idiosincrasia per qualcosa (to have an aversion to/dislike for something).

Note that in English, the word idiosyncrasy refers to a peculiar characteristic, trait, or eccentricity and is often translated as la mania, la peculiarità, or la particolarità.

See the noun used below:

La più grande idiosincrasia di mio fratello sono gli insetti: proprio non riesce a stare vicino a un ragno o a una vespa. Si spaventa e comincia a correre come un matto.

My brother really, really dislikes bugs: he really can't be near a spider or a wasp. He gets scared and starts to run like crazy.