
religiös
religious
Relates to belief in one or more deities and the practice of a religion.
Ihre Familie ist sehr religiös und feiert alle kirchlichen Feste.
Her family is very religious and celebrates all church holidays.
religious
Loading your saved state.

religious
Relates to belief in one or more deities and the practice of a religion.
Ihre Familie ist sehr religiös und feiert alle kirchlichen Feste.
Her family is very religious and celebrates all church holidays.

religious
Relates to religion as a topic or institution, without expressing a personal attitude of faith.
Das Museum zeigt eine Sammlung religiöser Kunst aus dem Mittelalter.
The museum shows a collection of religious art from the Middle Ages.

religious
Figuratively: carried out with extreme care, devotion, or regularity, almost like a ritual.
Er pflegt seine Oldtimer-Sammlung mit fast schon religiöser Genauigkeit.
He maintains his classic car collection with almost religious precision.
The adjective 'religiös' (religious) is derived directly from the noun 'die Religion' (religion). It describes everything that has to do with religion or is shaped by it.
In der Schule lernen wir über verschiedene religiöse Traditionen.
At school, we learn about different religious traditions.
If 'religiös' (religious) describes a person, it means that this person is devout or has faith. If it describes a thing (e.g. a book, a building, a topic), it means that the thing has a connection to religion.
Meine Tante ist eine sehr religiöse Frau.
My aunt is a very religious woman.
In the figurative sense, 'religiös' (religious) describes an action that is carried out with extreme, almost ritual care. In this use, it has nothing to do with faith and is often intensified by adverbs like 'fast schon' (almost) or 'geradezu' (downright).
Er putzt sein Auto jeden Samstag mit einer fast schon religiösen Hingabe.
He cleans his car every Saturday with almost religious devotion.
ecclesiastical / church
Religiös and kirchlich can both refer to faith, worship services, or institutions. Religiös is broader and can refer to religion in general or to different religions, whereas kirchlich presupposes the church as an institution. Use religiös for a general reference to religion and kirchlich for services or activities of the church.

Das Museum zeigt eine religiöse Ausstellung über verschiedene Glaubensrichtungen.
The museum is showing a religious exhibition about different faiths.
Die kirchliche Gemeinde organisiert am Sonntag einen Gottesdienst.
The church congregation is organizing a worship service on Sunday.