Questions & Answers about Tämä on luonnollinen materiaali.
How is luonnollinen formed from the word for nature?
It comes from the noun luonto (nature). When adding the -llinen suffix, the root word goes into its weak grade. The consonant cluster nt softens to nn, giving the stem luonno-. Add -llinen to get luonnollinen (natural).
How do I add case endings to luonnollinen if I want to say 'in a natural material'?
Like other words ending in -nen, the ending changes to -se- before most case suffixes. The stem becomes luonnollise-. So, 'in a natural material' would be luonnollisessa materiaalissa.
Why are luonnollinen and materiaali in the nominative case rather than the partitive?
This is a basic 'A is B' sentence. Because the subject (tämä) refers to a single, countable type of material here rather than an abstract mass, the describing phrase (luonnollinen materiaali) stays in the basic nominative case.
How would I form the opposite word, 'unnatural'?
You can use the suffix -ton (without) attached to the exact same weak stem. This gives you luonnoton (unnatural).