Az alkalmi ruha kényelmes.

Here az is the definite article, meaning the.

Hungarian has two forms of the definite article:

• a before a consonant
• az before a vowel

Since alkalmi begins with a vowel, Hungarian uses az:

• az alkalmi ruha
• but a ruha

So this is just a sound-based choice, like using an before vowels in English.

Alkalmi is an adjective. It means something like for an occasion, dressy, formal, or occasion-wear, depending on context.

It comes from alkalom, which means occasion or event, plus the adjective-forming ending -i.

So alkalmi ruha is literally something like:

• occasion clothing
• dressy outfit
• formal wear
• sometimes dress or special-occasion dress, depending on context

Hungarian often uses this kind of noun + -i adjective pattern.

In Hungarian, an adjective normally comes before the noun when it directly describes it.

So:

• alkalmi ruha = formal/dressy clothing
• kényelmes ruha = comfortable clothing

This is the normal attributive adjective position, similar to English.

If the adjective comes later, it is usually part of the predicate instead:

• A ruha kényelmes. = The clothing/dress is comfortable.

So in your sentence:

• alkalmi describes ruha
• kényelmes is what the whole subject is being described as

Hungarian usually leaves out to be in the present tense, third person.

So:

• Az alkalmi ruha kényelmes. literally: The formal clothing comfortable. but naturally: The formal clothing is comfortable.

This is completely normal in Hungarian.

Compare:

• Én kényelmes vagyok. = I am comfortable.
• Te kényelmes vagy. = You are comfortable.
• Az alkalmi ruha kényelmes. = The formal clothing is comfortable.

So the verb appears with I and you, but in present-tense he/she/it sentences like this one, it is often omitted.

Kényelmes is an adjective meaning comfortable.

In this sentence it is a predicate adjective, meaning it tells you what the subject is like:

• Az alkalmi ruha kényelmes.
• The formal clothing is comfortable.

It is not directly attached to the noun as part of the noun phrase. If it were, you would get:

• a kényelmes alkalmi ruha = the comfortable formal outfit/dress

So in your original sentence, kényelmes is the main description being asserted.

It is singular.

Ruha can mean:

• dress in some contexts
• clothing
• garment
• outfit

The exact English translation depends on context. Hungarian often uses singular where English might sometimes prefer a broader word like clothes or clothing.

Plural would be:

• ruhák = clothes / garments / dresses

So here ruha is grammatically singular.

Hungarian adjectives do not change for gender, because Hungarian has no grammatical gender.

So there is no equivalent of changing for masculine/feminine/neuter like in some European languages.

Also, in a simple sentence like this, the adjective stays in its basic form:

• A ruha kényelmes.
• A kabát kényelmes.
• Az ing kényelmes.

The adjective kényelmes stays the same.

This is often simpler for English speakers than languages with adjective agreement.

The neutral word order here is:

• Az alkalmi ruha kényelmes.

This is a very natural topic + comment structure in Hungarian:

• Az alkalmi ruha = what we are talking about
• kényelmes = what we are saying about it

You can change the word order for emphasis, for example:

• Kényelmes az alkalmi ruha.

That would put more focus on kényelmes, roughly like:

• The formal outfit is comfortable
• or It’s the formal outfit that’s comfortable

But the original version is the most neutral and textbook-like.

All the main words are in the nominative here, which is the basic dictionary form.

• az = definite article
• alkalmi = adjective
• ruha = noun, nominative singular
• kényelmes = adjective in predicate position

There are no visible case endings here because the sentence is just a simple statement with a subject and a description.

A rough pronunciation guide is:

• Az ≈ uz
• alkalmi ≈ AHL-kahl-mee
• ruha ≈ ROO-haw
• kényelmes ≈ KAY-nyel-mesh

A few useful notes:

• a in Hungarian is not like English a in cat; it is more like a short o/aw sound.
• á is longer and more open than a.
• é is like ay in say, but usually cleaner and tenser.
• ny is like the ny sound in canyon.
• s in Hungarian sounds like English sh.

Stress in Hungarian is normally on the first syllable of each word:

• AZ
• ALkalmi
• RUha
• KÉnyelmes

Yes, az can also be a demonstrative, meaning that, but not in this sentence.

Here it is just the definite article the, because it directly introduces the noun phrase:

• az alkalmi ruha = the formal outfit/clothing

If az meant that, the structure would usually be different, often with another article as well:

• az a ruha = that dress
• az az alkalmi ruha = that formal dress/outfit

So in your sentence, the simplest reading is definitely the.

Possibly, depending on context. Alkalmi ruha can refer to:

• a formal dress
• a dressy outfit
• occasion wear
• special-occasion clothing

If the context is specifically about women’s clothing, alkalmi ruha can certainly mean a formal dress or special-occasion dress.

If the context is broader, it may be better understood as formal clothing or dressy wear.

So the exact English wording can vary, even though the Hungarian is straightforward.