Because belangrik comes after is, where it is used predicatively.
In Afrikaans, adjectives often look different depending on position:
So:
This is a very common Afrikaans pattern.
Yes. In this sentence, the word order is basically the same as English:
So Kuns is belangrik matches Art is important very closely.
More generally, Afrikaans main clauses often follow a verb-second pattern, but in a simple sentence like this, it looks very natural to an English speaker.
A rough English-friendly guide is:
A few tips:
So an approximate pronunciation would be:
kuns iss buh-LUNG-rik
Kuns is nie belangrik nie.
Afrikaans usually uses a double nie in negation:
So:
It is capitalized only because it is the first word of the sentence.
Afrikaans does not capitalize all nouns the way German does.
So:
Only proper nouns and normal sentence-start capitalization use capitals.