These details are particular.

I need some details to complete the project.

This peculiarity makes the product unique in its kind.

Particularism is evident in the various regional traditions.

The particularists are very demanding in their tastes.

The scholars have analyzed the peculiarities of the Italian language.

The characteristics of this house are truly unique.

These shops have some characteristic products.

This characteristic is very interesting.

Her particularistic opinions are always interesting.