Η αποζημίωση είναι έτοιμη, μα δεν πληρώθηκε.

Because αποζημίωση is a feminine noun, and the adjective has to agree with it in gender, number, and case.

• η αποζημίωση = feminine singular
• so the adjective is έτοιμη = feminine singular

Compare:

• ο φάκελος είναι έτοιμος = the folder is ready
• η αποζημίωση είναι έτοιμη = the compensation is ready
• το έγγραφο είναι έτοιμο = the document is ready

So this is a basic agreement pattern in Greek.

Μα means but here. It is very close to αλλά, which is the most common neutral word for but.

In this sentence:

• Η αποζημίωση είναι έτοιμη, μα δεν πληρώθηκε.
• μα connects two contrasting ideas: it is ready, but it was not paid.

A learner should know:

• αλλά is usually the safest choice in everyday Greek
• μα can sound a little more literary, emotional, or emphatic, though it is also very common

So:

• είναι έτοιμη, αλλά δεν πληρώθηκε = perfectly normal
• είναι έτοιμη, μα δεν πληρώθηκε = also normal, with a slightly stronger or more expressive contrast

Greek uses the definite article much more often than English does.

Here, η αποζημίωση means the compensation. Greek normally includes the article when talking about a specific noun.

So even if English might sometimes sound more natural with or without an article depending on context, Greek usually wants one:

• η αποζημίωση
• η πληρωμή
• το έγγραφο

Leaving it out would often sound unnatural unless you are using a special style, heading, label, or very specific structure.

Πληρώθηκε is the aorist passive, 3rd person singular, of πληρώνω (to pay).

So grammatically it means:

• was paid
• or sometimes more naturally in English, got paid

Breakdown:

• verb: πληρώνω = I pay
• passive aorist stem: πληρώθ- / πληρωθ-
• form: πληρώθηκε = it was paid

Since the subject is η αποζημίωση, the meaning is that the compensation was not paid.

Because the sentence combines:

• a present state: είναι έτοιμη = it is ready now
• with a completed/non-completed event in the past context: δεν πληρώθηκε = it was not paid

This is very natural in Greek. The speaker is saying:

1. the compensation is currently ready
2. but the payment did not happen

So the sentence contrasts current readiness with failure of payment.

These forms are related, but they do not mean exactly the same thing.

• δεν πληρώθηκε = it was not paid

  • focuses on the event
  • suggests the payment did not happen

• δεν είναι πληρωμένη = it is not paid

  • focuses more on the current state/result
  • describes its status

In your sentence, δεν πληρώθηκε highlights the fact that the act of paying did not take place. That is why it fits well after είναι έτοιμη.

Αποζημίωση usually means compensation, indemnity, or sometimes damages/payout, depending on context.

Common situations include:

• insurance compensation
• compensation from an employer
• damages awarded after harm or loss
• reimbursement-like payments in some contexts

So it is a fairly formal noun and often appears in legal, business, workplace, or administrative language.

In Greek, δεν is the normal negation used with verbs in non-subjunctive forms, and it comes directly before the verb.

So:

• πληρώθηκε = it was paid
• δεν πληρώθηκε = it was not paid

This is the standard pattern:

• είναι → δεν είναι
• ήρθε → δεν ήρθε
• πληρώθηκε → δεν πληρώθηκε

A native English speaker may want to compare it to placing not with the verb phrase in English, but in Greek the position is simpler and more fixed.

Yes, Greek word order is more flexible than English word order, although the original sentence is very natural.

For example, you could also say:

• Η αποζημίωση είναι έτοιμη, αλλά δεν πληρώθηκε.
• Η αποζημίωση δεν πληρώθηκε, παρόλο που είναι έτοιμη.

However, the original order works well because it presents:

1. the expectation: it is ready
2. the contrast/surprise: but it was not paid

So the order helps the sentence sound natural and rhetorically effective.

It is passive in form and meaning.

That matters because the subject, η αποζημίωση, is not the one doing the paying. It is the thing receiving the action.

So:

• active idea: Κάποιος πλήρωσε την αποζημίωση = someone paid the compensation
• passive version: Η αποζημίωση πληρώθηκε = the compensation was paid

In your sentence:

• Η αποζημίωση ... δεν πληρώθηκε
• the compensation was not paid

This is a very common way to express such ideas in Greek, especially in formal or administrative contexts.