To był okropny dzień.

In this sentence, to is a very common Polish word used in statements like This was..., That was..., or It was....

So To był okropny dzień is a natural way to say That/It was a terrible day.

A few useful points:

• to here does not behave exactly like English this
• it often introduces identification or description
• it is extremely common in sentences like:
  • To jest mój brat. = This/That is my brother.
  • To był dobry film. = That was a good film.

If you used ten, that would be more like this specific one and would not sound as natural in this sentence.

Because dzień is a masculine noun, and in the past tense Polish verbs agree with gender.

The verb here is from być = to be.

Past tense forms:

• był = masculine
• była = feminine
• było = neuter

Since dzień is masculine, Polish uses był:

• To był okropny dzień.

Compare:

• To była okropna noc. = That was a terrible night.
  (noc is feminine)
• To było okropne doświadczenie. = That was a terrible experience.
  (doświadczenie is neuter)

Because adjectives in Polish must agree with the noun they describe in:

• gender
• number
• case

The noun dzień is:

• masculine
• singular
• nominative here

So the adjective must also be masculine singular nominative:

• okropny dzień

Compare:

• okropna noc = terrible night
• okropne miejsce = terrible place
• okropni ludzie = terrible people (masculine personal)
• okropne dni = terrible days

So okropny is the correct matching form for dzień.

Polish does change endings a lot, but here dzień is the subject/complement noun in the basic dictionary form, which is nominative singular.

So in this sentence:

• dzień stays dzień
• okropny also appears in its nominative singular masculine form

This is the normal pattern for a sentence like It was a terrible day.

You would see different forms in other cases, for example:

• Nie pamiętam tego dnia. = I don’t remember that day.
  (dnia = genitive/accusative form)
• Myślę o tym dniu. = I’m thinking about that day.
  (dniu = locative form)

But in To był okropny dzień, nominative is correct.

dzień can be tricky for English speakers.

A rough guide:

• dz sounds like the j in jam, but here it is softened by ie
• the whole beginning dzie sounds somewhat like je in a very soft Jenya, though not exactly
• ń is a soft n, similar to the ny sound in some pronunciations of canyon

A rough English-style approximation is:

• jeny, but shorter and softer

Important details:

• the e is clear and short
• the final ń is not a full n plus y; it is one soft consonant
• the word is one syllable in practice: dzień

If you want to break it down, think:

• dźeń / dzień

But it is best learned by listening, because Polish soft consonants do not match English exactly.

Yes, Polish word order is more flexible than English, though some versions sound more natural in certain contexts.

The most neutral version is:

• To był okropny dzień.

You may also hear:

• Okropny to był dzień.
• To okropny był dzień.

These alternatives usually add emphasis or a more literary/dramatic tone.

For everyday speech, stick with:

• To był okropny dzień.

That is the safest and most natural choice for a learner.

It is a very natural and common word, yes. It means something like:

• terrible
• awful
• horrible

Depending on tone, other adjectives are also possible:

• straszny dzień = terrible/awful day
• fatalny dzień = awful/lousy day
• koszmarny dzień = horrible/nightmarish day

But okropny dzień is completely normal and idiomatic.

A small nuance:

• okropny can sound quite strong
• straszny is also very common in everyday speech and can sometimes be a bit broader in use

Because Polish has no articles like English a/an/the.

So:

• okropny dzień can mean a terrible day or the terrible day, depending on context

Polish relies on:

• context
• word order
• sometimes demonstratives like ten = this/that

In this sentence, the natural English translation is a terrible day, but Polish does not need a separate word for a.

It can correspond to either, depending on context.

Polish to is broader than English it or that in this structure. So this sentence could be understood as:

• It was a terrible day
• That was a terrible day

Which one sounds best in English depends on what came before.

For example:

• if you are simply describing yesterday, English often prefers It was a terrible day
• if you are reacting to a specific event or period just mentioned, That was a terrible day may fit better

Polish does not force that distinction here.

Yes. Był to okropny dzień is grammatically correct.

However, it usually sounds:

• more formal
• more literary
• more narrative

Compare:

• To był okropny dzień. = neutral, everyday
• Był to okropny dzień. = slightly elevated, storytelling style

So as a learner, use To był okropny dzień as your default.

Both the verb and the adjective would change to match the noun’s gender.

Examples:

• To była okropna noc. = That was a terrible night.
  (noc is feminine)
• To było okropne przeżycie. = That was a terrible experience.
  (przeżycie is neuter)

So the pattern is:

• masculine: to był okropny...
• feminine: to była okropna...
• neuter: to było okropne...

This is an important Polish pattern to learn early, because it appears constantly in the past tense.