कमरा एकदम शांत है।

A natural pronunciation is:

kamrā ekdam śānt hai

A rough English-friendly guide:

• कमरा = KUM-raa
• एकदम = EK-dum
• शांत = shaant or shahnt
• है = hai, sounding a bit like heh or hai

A smooth spoken version is:

kamrā ekdam śānt hai

In normal speech, है is often lighter than English learners expect.

Here is the breakdown:

• कमरा = room
• एकदम = completely / absolutely / totally
• शांत = quiet / calm / peaceful
• है = is

So the structure is basically:

Room + completely + quiet + is

Hindi often puts the verb at the end, so this word order is normal.

Hindi does not usually use articles like English a, an, and the.

So कमरा can mean:

• a room
• the room
• sometimes just room, depending on context

You understand which one is meant from the situation, not from an article.

एकदम is a very common intensifier. In this sentence, it means something like:

• completely
• totally
• absolutely
• perfectly

So एकदम शांत means:

• completely quiet
• absolutely silent
• totally calm

In conversation, एकदम is extremely common and useful.

Examples:

• एकदम ठीक = completely fine / perfectly fine
• एकदम साफ़ = completely clean
• एकदम सही = absolutely right

Good question. Hindi adjectives come in two main types:

1. Variable adjectives — they change form
   Example: अच्छा / अच्छी / अच्छे
2. Invariable adjectives — they usually do not change
   Example: शांत

Since शांत is generally used as an invariable adjective, it stays शांत whether the noun is masculine or feminine, singular or plural in many common contexts.

So:

• कमरा शांत है = The room is quiet
• कक्षा शांत है = The class is quiet
• कमरे शांत हैं = The rooms are quiet

The adjective often remains शांत.

है is the present-tense form of to be for a singular subject.

Since कमरा is singular, we use है:

• कमरा शांत है = The room is quiet

If the subject were plural, you would usually use हैं:

• कमरे शांत हैं = The rooms are quiet

So है is there because Hindi often uses a form of to be in simple descriptive sentences.

Yes, कमरा is masculine singular.

That matters in Hindi because many words can agree with the noun’s gender and number. In this sentence:

• कमरा = masculine singular
• है = singular
• शांत = invariable adjective, so it does not visibly change here

You can see the masculine singular form more clearly with a variable adjective:

• कमरा बड़ा है = The room is big
• किताब बड़ी है = The book is big

Here बड़ा / बड़ी changes, but शांत usually does not.

English says:

The room is completely quiet.

Hindi says:

कमरा एकदम शांत है।

Hindi usually follows a pattern closer to:

subject + description + verb

So the verb है comes at the end.
This is one of the most important word-order differences between English and Hindi.

A literal order would be:

Room completely quiet is.

That sounds odd in English, but it is normal in Hindi.

Yes, you can.

• बहुत शांत = very quiet
• एकदम शांत = completely / absolutely quiet

So the difference is intensity and nuance:

• कमरा बहुत शांत है। = The room is very quiet.
• कमरा एकदम शांत है। = The room is completely quiet / absolutely silent.

एकदम often sounds stronger and more emphatic than बहुत.

Not exactly.

• शांत usually means quiet, calm, peaceful
• चुप usually means silent or not speaking

For a room, शांत sounds very natural because it describes the atmosphere.

Examples:

• कमरा शांत है। = The room is quiet/calm.
• वह चुप है। = He/She is silent.

You can use चुप for people especially, while शांत is broader and can describe places, situations, minds, crowds, and so on.

Yes. शांत can cover both quiet and calm, depending on context.

For a room, English will most often translate it as:

• quiet
• peaceful
• still

So कमरा एकदम शांत है could suggest:

• no noise
• a peaceful atmosphere
• complete stillness

The exact English wording depends on context, but the Hindi sentence is perfectly natural for all of those related ideas.