הוא כועס כשיש יותר מדי בלגן במטבח, אבל היא לא כועסת מהר.

Because Hebrew adjectives change for gender.

• כועס = angry, masculine singular
• כועסת = angry, feminine singular

So:

• הוא כועס = he is angry
• היא כועסת = she is angry

This is very common in Hebrew. Adjectives usually have to match the person or thing they describe in gender and number.

It is basically an adjective, but in Hebrew adjectives are often used where English would use to be + adjective.

So Hebrew says:

• הוא כועס literally: he angry
• היא לא כועסת literally: she not angry

But in natural English, we translate that as:

• he is angry
• she is not angry

This happens because in the present tense, Hebrew usually does not use a separate word for is / am / are.

Because in present-tense Hebrew, the verb to be is usually omitted.

So instead of saying a word for is, Hebrew simply says:

• הוא כועס = he is angry
• היא לא כועסת = she is not angry

That is normal and expected. If you translate word-for-word, it may feel incomplete to an English speaker, but in Hebrew it is perfectly grammatical.

כשיש is made of two parts:

• כש־ = when
• יש = there is / there are

So כשיש means when there is or when there are.

In this sentence:

• כשיש יותר מדי בלגן במטבח = when there is too much mess in the kitchen

Even though English might sometimes prefer when the kitchen is too messy, Hebrew naturally uses יש here.

Hebrew often expresses this idea with יש + a noun, literally there is + something.

So:

• יש בלגן במטבח = there is a mess in the kitchen

Then:

• כשיש יותר מדי בלגן במטבח = when there is too much mess in the kitchen

This is a very natural Hebrew way to talk about situations or conditions. English may sometimes use an adjective, but Hebrew often prefers a noun phrase like בלגן.

יותר מדי means too much or too many.

Here it modifies בלגן:

• יותר מדי בלגן = too much mess / too much disorder

You can use יותר מדי with many nouns and situations:

• יותר מדי עבודה = too much work
• יותר מדי אנשים = too many people
• יותר מדי רעש = too much noise

It comes after or before? In this pattern, it appears before the noun:

• יותר מדי + noun

Because the sentence is talking about mess in a general sense, not a specific previously identified mess.

• בלגן = mess / disorder
• הבלגן = the mess

So:

• יש בלגן במטבח = there is mess in the kitchen / the kitchen is messy
• יש הבלגן במטבח would sound wrong in this context

Hebrew often uses a bare noun where English may or may not use an article. Here בלגן works like an uncountable/general noun.

במטבח is a combination of:

• ב־ = in
• ה־ = the
• מטבח = kitchen

So:

• ב + ה + מטבח → במטבח

This means in the kitchen.

This kind of contraction is very common in Hebrew:

• בבית = in the house
• בספר = in the book
• במטבח = in the kitchen

So the preposition and the definite article often combine into one written word.

Yes, מהר literally means quickly / fast, but in this sentence it means something more natural in English like:

• she doesn’t get angry quickly
• she is not quick to get angry
• she doesn’t get angry easily

So מהר keeps its basic meaning of speed, but the whole phrase expresses temperament: she is slow to become angry.

Hebrew often uses the adjective כועס / כועסת with words like מהר to express the idea become/get angry quickly.

So:

• היא לא כועסת מהר literally looks like she is not angry quickly
• but naturally it means she doesn’t get angry quickly

Languages do not always divide ideas the same way English does. Hebrew often uses the adjective in a broader, more idiomatic way.

אבל means but.

It connects the two contrasting parts:

• הוא כועס כשיש יותר מדי בלגן במטבח
• אבל היא לא כועסת מהר

So the sentence is contrasting their reactions:

• he gets angry when the kitchen is too messy
• but she does not get angry quickly

This is a very common Hebrew conjunction.

Yes, it is very natural.

The structure is:

• הוא כועס = he is angry
• כשיש יותר מדי בלגן במטבח = when there is too much mess in the kitchen
• אבל = but
• היא לא כועסת מהר = she does not get angry quickly

Hebrew word order is often fairly flexible, but this version sounds straightforward and natural. It starts with the main statement, then gives the when clause, and then adds a contrast.

A simple pronunciation guide would be:

• הוא כועס — hu ko-ES
• כשיש — ke-she-YESH
• יותר מדי — yo-TER mi-DEI
• בלגן — bal-a-GAN
• במטבח — ba-mit-BAKH
• אבל — a-VAL
• היא לא כועסת מהר — hi lo ko-E-set ma-HER

A full rough pronunciation:

hu ko-ES ke-she-YESH yo-TER mi-DEI bal-a-GAN ba-mit-BAKH, a-VAL hi lo ko-E-set ma-HER

The kh sound in במטבח is the throaty sound Hebrew often uses for ח.