هذا موقف صعب.

In Arabic, the verb to be is usually not stated in the present tense.

So Arabic says:

• هذا موقف صعب
• literally: this situation difficult
• natural English: This is a difficult situation

This is completely normal in Arabic.
If you wanted to talk about the past or future, then Arabic would use a verb such as كان for was.

For example:

• هذا موقف صعب = This is a difficult situation
• كان هذا موقفًا صعبًا = This was a difficult situation

A simple breakdown is:

• هذا = this
• موقف = situation / موقف / stance / موقف
• صعب = difficult

Grammatically, this is a nominal sentence in Arabic.

A helpful way to understand it is:

• هذا = the topic, this
• موقف صعب = what is being said about it, a difficult situation

So the whole sentence means:
This is a difficult situation.

Because موقف is a masculine noun in Arabic.

• هذا is used with masculine singular
• هذه is used with feminine singular

So:

• هذا موقف صعب = This is a difficult situation
• if the noun were feminine, you would use هذه

For example:

• هذه مشكلة صعبة = This is a difficult problem

Even though situation is not masculine in English, that does not matter. Arabic nouns have their own grammatical gender.

Because هذا موقف صعب means:

• This is a difficult situation

Here, موقف is indefinite, meaning a situation, not the situation.

Compare:

• هذا موقف صعب = This is a difficult situation
• هذا الموقف صعب = This situation is difficult

That is an important difference.

So:

• demonstrative + indefinite noun often gives the meaning This is a ...
• demonstrative + definite noun often gives the meaning This ... is ...

In Arabic, adjectives normally come after the noun they describe.

So:

• موقف صعب = a difficult situation
• literally: situation difficult

This is the normal word order in Arabic noun phrases.

Also, the adjective usually matches the noun in:

• gender
• number
• definiteness
• case

Here both are:

• masculine
• singular
• indefinite

So موقف صعب is a good match.

Because the phrase means a difficult situation, not the difficult situation.

In Arabic, if the noun is indefinite, the adjective describing it is also indefinite.

So:

• موقف صعب = a difficult situation
• الموقف الصعب = the difficult situation

This matching is very important in Arabic. The adjective follows the noun in definiteness:

• indefinite noun -> indefinite adjective
• definite noun -> definite adjective

A fully vocalized version is:

• هٰذا مَوْقِفٌ صَعْبٌ

At the end of a sentence, however, short case endings are often not pronounced in normal speech, so learners usually hear something closer to:

• hādhā mawqif ṣaʿb

In careful MSA grammar, both موقفٌ and صعبٌ would have ḍamma tanwīn because they are in the nominative here.

هذا is pronounced hādhā.

A few pronunciation notes:

• ه = h
• ذ = the th sound in this
• the word is pronounced as one unit: hā-dhā

The spelling can look slightly confusing to beginners, but the standard pronunciation is simply hādhā.

So the whole sentence is roughly:

• hādhā mawqif ṣaʿb

It is usually pronounced:

• mawqif

A rough breakdown:

• مَوْ = maw
• قِ = qi
• ف = f

The letter ق is a deep q sound, not an English k.
So it is better as maw-qif, not mow-kif.

This is a nominal sentence, which means a sentence that begins with a noun-like element rather than a verb.

Here it begins with:

• هذا = this

Nominal sentences are extremely common in Arabic, especially for statements like:

• This is...
• The book is...
• The weather is...

So هذا موقف صعب is a very typical Arabic sentence pattern.

Yes, but the meaning changes slightly.

• هذا صعب = This is difficult
• هذا موقف صعب = This is a difficult situation

The shorter version is more general.
The original sentence is more specific because it tells you what is difficult: a situation.

They are both correct, but they mean different things.

• هذا موقف صعب = This is a difficult situation
• الموقف صعب = The situation is difficult

The first introduces something as a difficult situation.
The second talks about a specific situation already known: the situation.

Yes. موقف comes from the root:

• و-ق-ف

This root has meanings connected with stopping or standing.

Related words include ideas like:

• to stop
• to stand
• a موقف or situation/stance/position

In real usage, موقف can mean:

• situation
• stance
• position
• sometimes even station/stop, depending on context

So in this sentence, it means situation.

You would change the demonstrative and the adjective to match the feminine noun.

For example, with مشكلة meaning problem:

• هذه مشكلة صعبة

That means:

• This is a difficult problem

Notice the agreement:

• هذه for feminine singular
• مشكلة feminine noun
• صعبة feminine adjective

So Arabic agreement is very important: the parts of the phrase must match.