Se kuulostaa vaikealta.

It can be either, depending on context.

In Finnish, se often refers to something already mentioned, something understood from the situation, or even a whole idea/situation. In English, that may come out as either it or that.

So:

• Se kuulostaa vaikealta. = It sounds difficult.
• Se kuulostaa vaikealta. = That sounds difficult.

Finnish does not force the same distinction that English often does here.

No. Kuulostaa means to sound, not to hear.

Compare:

• kuulla = to hear
• kuulostaa = to sound

So:

• Kuulen sen. = I hear it.
• Se kuulostaa vaikealta. = It sounds difficult.

This is a very common pair for learners to mix up.

Because the subject is se, which is third person singular, and kuulostaa is the present-tense third person singular form.

A quick mini-conjugation:

• minä kuulostan = I sound
• sinä kuulostat = you sound
• hän/se kuulostaa = he/she/it sounds
• me kuulostamme = we sound
• te kuulostatte = you all sound
• he/ne kuulostavat = they sound

So se kuulostaa is the correct match.

Because after verbs like kuulostaa (to sound), Finnish usually puts the adjective in the ablative form, often ending in -lta/-ltä.

So:

• basic form: vaikea = difficult
• here: vaikealta = difficult-looking / difficult-sounding / seeming difficult

This pattern is very common with verbs of appearance or impression, such as:

• kuulostaa hyvältä = sounds good
• näyttää oudolta = looks strange
• tuntuu pahalta = feels bad

So even though English says sounds difficult, Finnish does kuulostaa vaikealta, not kuulostaa vaikea.

It is the ablative singular form of vaikea.

For this adjective:

• vaikea = nominative
• vaikean = genitive
• vaikeaa = partitive
• vaikealta = ablative

In this sentence, the ablative is used because of the verb kuulostaa. You do not need to think of it as meaning literal movement from something here; it is just the form Finnish uses in this construction.

Not quite.

• Se on vaikea. = It is difficult.
• Se kuulostaa vaikealta. = It sounds difficult.

The first is a direct statement: the speaker says it actually is difficult.

The second is softer and more indirect: the speaker is judging based on what they have heard, not necessarily stating it as a fact.

So if someone explains a grammar rule and you are not sure yet, you might say:

• Se kuulostaa vaikealta.

If you have already tried it and know it is hard, you might say:

• Se on vaikea.

Yes, very often, especially in conversation.

Finnish often leaves out things that are obvious from context. If everyone knows what is being talked about, Kuulostaa vaikealta can work perfectly well and means Sounds difficult.

Still, Se kuulostaa vaikealta is a complete and natural sentence, especially when you want to clearly refer to something specific.

The normal, neutral order is:

• Se kuulostaa vaikealta.

That is:

• se = subject
• kuulostaa = verb
• vaikealta = complement

But Finnish word order is fairly flexible, and changing it changes emphasis more than basic meaning. For example:

• Vaikealta se kuulostaa.

This puts more emphasis on vaikealta: Difficult is how it sounds / It does sound difficult.

So the original sentence is the most neutral version.

A few useful pronunciation points:

• Finnish stress is usually on the first syllable
• double vowels are long
• letters are pronounced quite consistently

So:

• kuulostaa ≈ KUU-los-taa

  • uu is long
  • aa is long

• vaikealta ≈ VAI-ke-al-ta

  • ai is a diphthong
  • pronounce all the vowels; do not swallow them

If you shorten the double vowels too much, it can sound less natural, since vowel length matters in Finnish.