hrišćanski

1. Christian
   Božić je jedan od najvećih hrišćanskih praznika. — Christmas is one of the biggest Christian holidays.
   Srbija ima dugu hrišćansku tradiciju. — Serbia has a long Christian tradition.

2. in a Christian way; like a Christian
   Treba hrišćanski oprostiti onima koji su nas povredili. — We should forgive those who hurt us, as Christians do.

In Serbia the form is hrišćanski; kršćanski is Croatian.