Here's the whole rule before we start: a Serbian or Montenegrin adjective copies its noun. It changes its ending to match the noun's gender, then its number, then its case. Feminine kafa wants dobra; neuter pivo wants dobro; masculine grad wants dobar. Get that one habit and the endings stop being a minefield — everything below is just showing you the pattern in action.
Published 7 August 2026
I'm Maja, I teach this language for a living, and adjective endings are the thing my beginners fret about most and need to fret about least. English adjectives never move — "good coffee, good beer, good cities," same word every time. Ours do move, but they move predictably. Once you can spot a noun's gender, the adjective almost writes itself.
Take dobar, "good." In its basic (nominative singular) form it has three shapes, one per gender:
| Gender | Adjective | With a noun | Meaning |
|---|---|---|---|
| Masculine | dobar (DOH-bar) | dobar grad | a good city |
| Feminine | dobra (DOH-brah) | dobra kafa | a good coffee |
| Neuter | dobro (DOH-broh) | dobro pivo | a good beer |
That's the engine of the whole system: -∅ (a consonant) for masculine, -a for feminine, -o for neuter. And the good news is you already have to know the noun's gender to use the noun at all — the adjective just borrows the same information. If you're shaky on which nouns are which, the noun gender guide is the piece to read first; this one sits right on top of it.
Let's run "nice" across the coast. In Montenegro you'll hear lijep (ijekavica); in Serbia it's lep (ekavica). Same endings either way:
lijep grad — a nice city (grad is masculine)
lijepa plaža — a nice beach (plaža is feminine)
lijepo more — a nice sea (more is neuter)
Notice you didn't learn three new words. You learned one word and three endings you already met in dobar/dobra/dobro. Colours behave exactly the same way — crven grad, crvena plaža, crveno more — which is why the colours guide spends more time on agreement than on the colours themselves.
Plurals shift the ending again, and the pattern rhymes with the singular:
| Gender | Plural ending | Example |
|---|---|---|
| Masculine | -i | dobri gradovi — good cities |
| Feminine | -e | dobre kafe — good coffees |
| Neuter | -a | dobra piva — good beers |
Six endings total — three singular, three plural — cover the vast majority of what you'll say for months.
You'll see the same masculine adjective as both dobar and dobri, or velik and veliki, and wonder which is right. Both are. Masculine adjectives carry a short form and a long form. The short one is what you use as a predicate — Grad je velik, "The city is big" — and the long -i form is what you'll most often hear glued to a noun. Textbooks call this the indefinite/definite distinction. In real speech the line is blurry and nobody will blink if you reach for the -i form by default. File it under "polish later," not "learn now."
Here's the part people brace for: the adjective doesn't only match gender and number, it also follows the noun through the cases. When dobra kafa becomes the thing you're ordering, both words shift to the accusative: Želim dobru kafu — "I'd like a good coffee." The noun went kafa → kafu, and the adjective loyally went dobra → dobru to stay in step.
Don't try to memorise the full case table for adjectives up front — it's a lot of endings and you'll absorb them far faster from real sentences than from a grid. The mindset that saves you is simple: whatever the noun does, the adjective does too. If you can put the noun in the right case, the adjective is just following its lead.
First, freezing the adjective in its dictionary form — dobar kafa instead of dobra kafa. Second, guessing the gender wrong, which then drags the adjective wrong with it. Both come from treating the adjective as a separate problem. It isn't. It's a shadow of the noun. Nail the noun and the adjective takes care of itself.
Do I have to get this perfect to be understood? No. Say dobar kafa and every waiter in Kotor knows exactly what you want. Agreement is what makes you sound fluent rather than tourist — worth doing, not worth freezing over.
Is it the same in Croatian and Bosnian? The endings are identical across Serbian, Croatian, Bosnian and Montenegrin. Only the vowel inside some roots changes with ijekavica (lep vs lijep) — the -a and -o agreement endings never do.
What about "my," "this," "which"? They all agree too. Moj grad, moja kafa, moje pivo. Learn the pattern once here and you've quietly learned it for possessives and demonstratives as well.
The fastest way to make agreement automatic isn't a bigger table — it's saying the pairs out loud until the wrong ending sounds wrong in your ear. That's exactly how Gora drills it: real phrases, one gender at a time, with a fox that gently pushes back when you freeze the ending. If you only fix one habit this week, make it this one. Want the wider map of how the grammar fits together? Start from the learn Serbian roadmap and follow it in order.