Lễ này rất đẹp.

Lễ often refers to a ceremony, rite, or festival/celebration, depending on context.

In this sentence, it can be understood as something like this ceremony or this festival/event.
A learner should know that lễ is a bit broad and can sound somewhat formal.

Related words:

• buổi lễ = ceremony
• lễ hội = festival
• ngày lễ = holiday

So if you saw Lễ này rất đẹp, the exact natural English translation may depend on what kind of event is being talked about.

In Vietnamese, demonstratives like this and that usually come after the noun, not before it.

So:

• lễ này = this ceremony / this festival
• người này = this person
• nhà này = this house

This is a very common word-order difference from English.

A simple pattern is:

noun + này = this + noun
noun + đó/kia = that + noun

Vietnamese often does not use a verb like to be when an adjective is the main predicate.

So:

• Lễ này rất đẹp literally follows the pattern
  This ceremony very beautiful

But in natural English, you translate it as:

• This ceremony is very beautiful.

This is normal in Vietnamese:

• Cô ấy đẹp. = She is beautiful.
• Trời nóng. = The weather is hot.
• Món này ngon. = This dish is delicious.

So the adjective can function directly as the predicate without là.

Rất means very.

It goes before the adjective:

• rất đẹp = very beautiful
• rất tốt = very good
• rất vui = very happy/fun

So the structure is:

subject + rất + adjective

Examples:

• Cô ấy rất đẹp. = She is very beautiful.
• Phim này rất hay. = This movie is very good/interesting.

If you remove rất, the sentence still works:

• Lễ này đẹp. = This ceremony is beautiful.

Not only. Đẹp literally means beautiful or pretty, but Vietnamese also uses it more broadly for things that are aesthetically pleasing, impressive, or lovely in appearance.

So it can describe:

• a person
• clothes
• scenery
• decorations
• a ceremony or festival that looks visually impressive

With an event like lễ, đẹp usually suggests that it is beautifully presented, visually impressive, or well done in appearance.

Depending on context, other adjectives might also be more natural:

• hay = good, interesting
• vui = fun, lively
• trang trọng = solemn, formal, dignified

So Lễ này rất đẹp is possible, especially if the speaker is talking about how the event looks.

The sentence breaks down like this:

• Lễ này = this ceremony / this festival
• rất đẹp = very beautiful

So the structure is:

subject + adverb + adjective

More specifically:

• lễ này = noun phrase
• rất = degree adverb
• đẹp = adjective

You can think of the whole sentence as:

[This ceremony] [is very beautiful].

No, that would usually sound unnatural.

In Vietnamese, là is not normally used before an adjective predicate.

So you say:

• Lễ này rất đẹp.

Not:

• Lễ này là rất đẹp.

Là is used more often when connecting one noun to another noun:

• Anh ấy là giáo viên. = He is a teacher.

But with adjectives:

• Cô ấy đẹp. = She is beautiful.
• Món ăn này ngon. = This food is delicious.

So in your sentence, no là is needed.

Yes, it can be natural, especially if the speaker is commenting on the appearance or visual atmosphere of a ceremony or festival.

However, depending on the situation, native speakers might also choose a more specific adjective:

• Lễ này rất hay. = This event is very good/interesting.
• Lễ này rất vui. = This event is very fun/lively.
• Lễ này rất trang trọng. = This ceremony is very solemn/formal.
• Lễ hội này rất đẹp. = This festival is very beautiful.

So your sentence is grammatical and understandable, but the most natural adjective depends on what exactly you want to praise.

This is a useful distinction.

• lễ often means ceremony, rite, or a formal observance
• lễ hội more clearly means festival

So:

• Lễ này rất đẹp may sound like This ceremony is very beautiful
• Lễ hội này rất đẹp more clearly means This festival is very beautiful

If the event is large, public, and festive, lễ hội is often the more precise choice.

The sentence is:

Lễ này rất đẹp.

Approximate pronunciation:

• lễ — sounds roughly like lay with a broken rising tone
• này — roughly like nye with a low falling tone
• rất — short, clipped syllable with a rising tone
• đẹp — short, clipped syllable with a heavy low tone

Important note: the tones matter a lot.

The four tones here are:

• lễ = ngã tone
• này = huyền tone
• rất = sắc tone
• đẹp = nặng tone

A learner may find rất and đẹp especially hard because they end in final consonants and are very short.

Yes. Vietnamese has several common intensifiers.

For example:

• Lễ này đẹp lắm. = This ceremony is very beautiful.
• Lễ này thật đẹp. = This ceremony is really beautiful.
• Lễ này đẹp quá. = This ceremony is so beautiful.

These are all natural, but they feel slightly different:

• rất = neutral very
• lắm = often conversational and emphatic
• thật = really, truly
• quá = so / too, often emotional or expressive

Vietnamese does not use articles like a, an, and the in the same way English does.

So:

• lễ can mean a ceremony, the ceremony, or just ceremony, depending on context
• lễ này specifically means this ceremony

The word này already makes the noun definite and specific, so no separate word like the is needed.

To make it negative, use không before the adjective:

• Lễ này không đẹp. = This ceremony is not beautiful.

To make it a yes/no question, you can add question particles or rely on intonation. A very common pattern is:

• Lễ này có đẹp không? = Is this ceremony beautiful?

You could also ask:

• Lễ này đẹp không? = Is this ceremony beautiful?

So once you know the basic sentence, it is easy to change it:

• affirmative: Lễ này rất đẹp.
• negative: Lễ này không đẹp.
• question: Lễ này đẹp không? or Lễ này có đẹp không?