הסוודר האפור מתאים לחצאית הוורודה.

In Hebrew, descriptive adjectives normally come after the noun they describe.

So:

• הסוודר האפור = the gray sweater
• החצאית הוורודה = the pink skirt

This is the normal Hebrew word order:

• noun + adjective

Because in Hebrew, if a noun is definite, its adjective must also be definite.

So:

• סוודר אפור = a gray sweater
• הסוודר האפור = the gray sweater

English only uses the once, but Hebrew marks definiteness on both the noun and the adjective.

Because the preposition ל־ combines with the definite article ה־.

So:

• ל + החצאית becomes לחצאית

In fully pointed Hebrew, this would show up more clearly as לַחצאית. In normal unpointed spelling, you just see לחצאית.

That is why לחצאית הוורודה still means to/for the pink skirt, not just to a pink skirt.

Because Hebrew adjectives must agree with the noun in gender and number.

• סוודר is masculine singular, so: אפור
• חצאית is feminine singular, so: ורודה

With definiteness added:

• הסוודר האפור
• החצאית הוורודה

So the adjective changes form depending on the noun it describes.

Because מתאים agrees with the subject of the sentence, which is הסוודר האפור.

The subject is:

• הסוודר האפור = masculine singular

So the form is:

• מתאים = masculine singular

If the subject were feminine, you would say:

• החצאית הוורודה מתאימה לסוודר האפור

So מתאים matches the sweater, not the skirt.

After the verb להתאים, Hebrew normally uses ל־.

So:

• מתאים ל... = matches ... / suits ... / is suitable for ...

In this sentence:

• מתאים לחצאית הוורודה = matches the pink skirt

This is a very common pattern:

• זה מתאים לי = This suits me
• הצבע מתאים לחולצה = The color matches the shirt

Grammatically, it is the present-tense form of the verb להתאים.

So the dictionary form is:

• להתאים = to suit / to match / to be suitable

The present-tense forms are:

• מתאים = masculine singular
• מתאימה = feminine singular
• מתאימים = masculine plural
• מתאימות = feminine plural

Because Hebrew present-tense forms change for gender and number, they can feel a bit adjective-like to English speakers. But here it is functioning as the verb of the sentence.

Because מתאים already carries the meaning matches / is suitable.

So Hebrew does not need a separate word equivalent to English is here.

The sentence is not built like:

• The sweater is gray

Instead, it is built more like:

• The gray sweater matches the pink skirt

Here, מתאים is doing the job of the main verb, so no extra is is needed.