Absolute Superlative (-ísimo)

Spanish has a special form of superlative that means "extremely" or "very very" — the absolute superlative, formed with the suffix -ísimo. Unlike the regular superlative, it doesn't compare one thing to others. It just turns up the intensity.

Formation

To form the absolute superlative, drop the final vowel of the adjective and add -ísimo. It has four forms, just like any other four-form adjective.

AdjectiveAbsolute superlativeMeaning
altoaltísimoextremely tall
fácilfacilísimoextremely easy
lentolentísimoextremely slow
guapaguapísimaextremely good-looking
grandegrandísimoextremely large
inteligenteinteligentísimoextremely intelligent

La torta está buenísima.

The cake is absolutely delicious.

Mi abuela es altísima.

My grandma is extremely tall.

Fue un día cansadísimo.

It was an extremely tiring day.

Agreement

The absolute superlative agrees with the noun in gender and number, exactly like any other adjective.

FormExample
altísimoun edificio altísimo
altísimauna torre altísima
altísimosunos árboles altísimos
altísimasunas montañas altísimas

Son unos problemas dificilísimos.

They are extremely hard problems.

Spelling Changes

Some adjectives need a spelling adjustment so the pronunciation stays consistent when -ísimo is added.

c → qu

When an adjective ends in -co, the c changes to qu to preserve the hard sound:

  • rico → riquísimo
  • blanco → blanquísimo
  • poco → poquísimo

El postre estaba riquísimo.

The dessert was absolutely delicious.

g → gu

When an adjective ends in -go, the g becomes gu:

  • largo → larguísimo
  • amargo → amarguísimo

Fue un viaje larguísimo.

It was an extremely long trip.

z → c

When an adjective ends in -z, the z changes to c:

  • feliz → felicísimo

Estamos felicísimos por la noticia.

We're extremely happy about the news.

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These spelling changes mirror what you've already seen in verb conjugations — Spanish spelling always keeps the pronunciation consistent. If adding -ísimo would change how the letter sounds, a spelling tweak adjusts for it.

A Few Irregulars

Some adjectives have special absolute superlative forms inherited from Latin. You'll hear some more than others.

AdjectiveAbsolute superlative
buenobuenísimo (also: bonísimo, literary)
malomalísimo (also: pésimo, literary)
grandegrandísimo
pequeñopequeñísimo
nuevonovísimo (literary) / nuevísimo
fuertefortísimo (literary) / fuertísimo
antiguoantiquísimo

In Latin American everyday speech, you're more likely to hear buenísimo and malísimo than their Latinate cousins. But pésimo ("terrible") is fully modern.

Es un escritor buenísimo.

He's an extremely good writer.

Tuvimos un día pésimo.

We had a terrible day.

Not a Comparison

Remember: the absolute superlative doesn't compare one thing to others. It just amplifies the adjective.

Es altísimo.

He's really, really tall.

To say "the tallest" (comparing), you'd use the regular superlative: es el más alto. See Superlatives.

Alternative: muy + adjective

You can almost always replace -ísimo with muy + adjective. The meaning is similar, but -ísimo feels more emphatic or expressive.

With muyWith -ísimo
muy altoaltísimo
muy ricariquísima
muy grandegrandísimo

In casual conversation, Latin Americans use both forms freely. -ísimo tends to be slightly more colorful.

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Try not to stack muy and -ísimo together. Muy buenísimo is redundant — pick one. The -ísimo form already carries the "very" meaning.

Pulling It Together

La película fue larguísima pero interesantísima.

The movie was super long but super interesting.

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