Η θέα είναι εκπληκτική.

Η is the feminine singular definite article, so it means the. It is used because θέα is a feminine noun.

In dictionary form, you would typically learn the noun as η θέα so you know its gender.

Θέα is feminine singular nominative.

• feminine because that is the noun’s grammatical gender
• singular because it refers to one view
• nominative because it is the subject of the sentence

Greek nouns change form depending on case, but here θέα is in its basic subject form.

Because Greek adjectives must agree with the noun they describe.

Since θέα is feminine singular nominative, the adjective also appears in the feminine singular nominative form: εκπληκτική.

The adjective’s other common forms are:

• εκπληκτικός — masculine
• εκπληκτική — feminine
• εκπληκτικό — neuter

Even though εκπληκτική comes after είναι, it still agrees with θέα.

Είναι is the present-tense form of είμαι, meaning to be.

In this sentence, it means is.
A useful thing to know is that είναι is used for both:

• he/she/it is
• they are

So Greek does not distinguish those two in this verb form.

Greek usually does not need an explicit subject pronoun like English does.

English often needs it is, but Greek can simply say:

• Η θέα είναι εκπληκτική — the noun itself is the subject
• or even Είναι εκπληκτική — if the subject is already understood from context

So Greek often sounds more compact than English.

Θέα is pronounced roughly THEH-a, with two syllables:

• θέ-
• -α

That is important because the έα is not merged into one sound.

A few pronunciation notes:

• θ sounds like th in think
• έ is a stressed e
• the final α is a separate vowel sound

So it is THÉ-a, not one syllable.

The accent marks show which syllable is stressed.

• θέα → stress on θέ
• είναι → stress on εί
• εκπληκτική → stress on the last syllable κή

Stress is very important in Greek pronunciation, and it can sometimes help distinguish forms.

Yes. Greek word order is more flexible than English word order.

The neutral, standard order is:

• Η θέα είναι εκπληκτική.

But you could also say:

• Εκπληκτική είναι η θέα.

That version gives more emphasis to εκπληκτική.

So the basic meaning stays the same, but the emphasis can shift.

In normal Greek, that would sound unnatural.

Greek usually keeps the article with a noun like θέα in a sentence like this, so Η θέα είναι εκπληκτική is the natural form.

Leaving out the article might only happen in very special styles, such as:

• headlines
• notes
• poetic language

For everyday speech, keep η.

It can cover a range of positive meanings depending on context, such as:

• amazing
• wonderful
• stunning
• spectacular
• impressive

So it is a strong positive adjective, and the exact English choice depends on the situation.