Learn Hardcore Icelandic: Ég er ekki reiður.

In Icelandic, ekki usually comes right after the verb it negates, following a common pattern where the order is subject + verb + negation (and then the rest of the sentence).

Why does the adjective reiður end with -ur?

Reiður is the masculine form. If the speaker identifies as male or is using the masculine form by default, they use reiður. If the speaker identifies as female, they might use reið instead, which is the feminine form of the same adjective.

How do I pronounce reiður correctly?

It's roughly pronounced as [rei-ðʏr]. The letter ð sounds like the 'th' in this, and the ʏ is a short, rounded vowel similar to the 'u' in bull but said very briefly.

Is ég always capitalized like I in English?

No, ég (which means I) is normally written in lowercase unless it's the first word of a sentence or for stylistic emphasis, unlike in English where I is always capitalized.

Why isn’t there any article before reiður, like in English (a/an)?

Icelandic does not have an indefinite article (such as a or an). Nouns and adjectives typically stand alone without the need for an extra article.