No estamos listos para el desplome ni por asomo.

Because estar is used for a temporary state or condition, and here listos means ready.

• estamos listos = we are ready
• somos listos = we are clever/smart

This is a very important difference in Spanish:

• estar listo = to be ready
• ser listo = to be clever

So in this sentence, No estamos listos... means We are not ready..., not We are not smart...

Because it agrees with the implied subject nosotros/nosotras = we.

Spanish adjectives usually match the noun or pronoun they describe in number and sometimes gender:

• listo = ready/smart, masculine singular
• lista = feminine singular
• listos = masculine plural or mixed group
• listas = feminine plural

So:

• Estoy listo = I am ready. (male speaker)
• Estamos listas = We are ready. (all-female group)

In your sentence, listos suggests either a mixed group or a group of males.

Because Spanish often leaves out subject pronouns when the verb already makes the subject clear.

• estamos already tells you the subject is we
• so (nosotros) estamos is usually unnecessary

Both are possible:

• No estamos listos...
• Nosotros no estamos listos...

Adding nosotros would usually give extra emphasis or contrast, like we are not ready.

Here para means for or for facing something.

• estar listo para + noun = to be ready for + noun
• estar listo para + infinitive = to be ready to + verb

Examples:

• No estoy listo para el examen. = I’m not ready for the exam.
• Estamos listos para salir. = We’re ready to leave.

So listos para el desplome means ready for the collapse/downturn/crash.

Desplome comes from the verb desplomarse, which literally suggests something falling down suddenly or collapsing.

Depending on context, el desplome can mean:

• a collapse
• a plunge
• a crash
• a sharp downturn

It is often used for things like:

• the economy
• stock prices
• sales
• a building or structure collapsing

So the exact English translation depends on context, but the basic idea is a sudden, serious fall or collapse.

Ni por asomo is an idiomatic expression meaning:

• not even remotely
• not by a long shot
• not in the slightest
• not even close

It strongly reinforces the negation.

So:

• No estamos listos ni por asomo = We’re not even remotely ready
• No lo entiendo ni por asomo = I don’t understand it at all / not even close

It is a fixed expression, so it’s best learned as a whole phrase.

Because ni here works as part of the negative expression ni por asomo, which adds emphasis after an initial no.

Spanish often uses this structure:

• No + verb + ni...

Examples:

• No es fácil ni de broma. = It’s not easy at all.
• No estoy cansado ni mucho menos. = I’m not tired, far from it.
• No estamos listos ni por asomo. = We’re not ready in the slightest.

So the no is the main negation, and ni por asomo strengthens it.

Usually it comes after the part it is emphasizing, and in this sentence it sounds very natural at the end:

• No estamos listos para el desplome ni por asomo.

That final position gives it strong impact.

You may also hear similar placement with other sentences:

• No tengo tiempo ni por asomo.
• No se parece ni por asomo.

It is generally best for learners to keep it in this usual position: at or near the end of the clause.

No. Listo can mean different things depending on the verb used and the context.

With estar:

• estar listo = to be ready

With ser:

• ser listo = to be clever, smart
• in some contexts, especially in Spain, it can also suggest being sharp or sly

So context matters a lot:

• Estoy listo. = I’m ready.
• Es muy listo. = He/She is very clever.

Yes, often you could say preparados.

• No estamos preparados para el desplome.
• No estamos listos para el desplome.

Both can mean We are not ready for the collapse/downturn.

A slight difference in feel:

• listos = ready
• preparados = prepared

Sometimes preparados can sound a little more like there has been or should have been prior preparation, while listos is a bit broader and more everyday.

Asomo is related to the idea of appearing, peeking out, or the slightest sign/glimpse. It comes from the verb asomar or asomarse.

In the fixed phrase ni por asomo, the literal image is something like not even by the slightest glimpse.

But in normal learning terms, you do not need to unpack it literally every time. It is much better to remember the whole expression:

• ni por asomo = not even remotely / not in the slightest

It is fairly neutral, but ni por asomo adds a strong, idiomatic, slightly emphatic tone.

So the sentence sounds:

• natural
• expressive
• not overly formal
• not slangy either

You could use it in speech, journalism, commentary, or informal writing. In very formal writing, someone might choose a less idiomatic phrasing, but this expression is still perfectly standard.

You would change listos to listas:

• No estamos listas para el desplome ni por asomo.

The rest stays the same.

That is because the adjective must agree with the gender and number of the group:

• listos = masculine plural / mixed group
• listas = feminine plural

Yes. The structure is very productive:

• No estamos listos para la crisis ni por asomo.
• No estamos listos para el examen ni por asomo.
• No estamos listos para el cambio ni por asomo.

So the pattern is:

No estamos listos/listas para + noun + ni por asomo

It is a useful model for saying that someone is absolutely not ready for something.