muchísimasvsmuchísimoWhat's the difference?

Quick tell: muchísimas is a adjective, muchísimo is an adverb, so they fill different roles in a sentence.

Which to use

“muchísimas” is an adjective and “muchísimo” is an adverb - they look or sound alike but fill different roles in a sentence.

#6,434
“muchísimas” frequency rank
#2,621
“muchísimo” frequency rank
9055
confusion score

Side-by-Side Comparison

Feature muchísimas muchísimo
Definition Forma del femenino plural de muchísimo, superlativo de mucho. Superlativo de mucho: en gran manera.

Where the spellings diverge

Shared letters are muted; the letters that actually set muchísimas and muchísimo apart are highlighted. They share 8 letters in sequence, which is exactly why the eye skips the difference.

10 ch
muchísimas
9 ch
muchísimo

Spelling & Dictionary Insight

These two trip readers on the page rather than in the ear: muchísimas is [muˈt͡ʃisimas] while muchísimo is [muˈt͡ʃisimo]. Spoken aloud the problem disappears. In writing it persists, because they differ by 1 letter(s) in length, and the parts of speech differ too (adjective vs adverb), which is usually the fastest check. Our composite confusion score for this pair is 9055, derived from the frequency rank of both members and their visual similarity.

muchísimas is recorded at frequency rank #6,434, classified as anadj, pronounced [muˈt͡ʃisimas]. muchísimo is at rank #2,621, tagged as anadv, pronounced [muˈt͡ʃisimo].

Glosses for this pair are partially populated in our dataset, but the full side-by-side definitions above should still guide you to the right choice.

With a confusion score of 9055, this pair ranks #303,113 of 323,831 scored Spanish confusable pairs - a relatively easy-to-tell-apart pair.

Orthographic DNA of muchísimas vs muchísimo

Shared letters: chimsuí. Private to "muchísimas": a. Private to "muchísimo": o.

"muchísimas" · 10 letters · shape CVCCVCVCVC  ·  "muchísimo" · 9 letters · shape CVCCVCVCV

Frequency comparison

muchísimas#6,434
muchísimo#2,621

Source: FrequencyWords open word-frequency list

Frequently Asked Questions

Can "muchísimas" and "muchísimo" be used interchangeably?
No - they are not even the same part of speech. "muchísimas" is an adjective and "muchísimo" an adverb, so a sentence built for one is usually ungrammatical with the other.
Which is more common, "muchísimas" or "muchísimo"?
"muchísimo" is the more common of the two: it sits at frequency rank #2,621 in our Spanish list, against #6,434 for "muchísimas". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

Remembering muchísimas vs muchísimo

The fastest way to pick the right one every time.

  • Check the role first: if you need an adjective, it's “muchísimas”; for an adverb, it's “muchísimo”.
  • See each word in full, definition, IPA, etymology and its other confusables. Full “muchísimas” entry
  • Browse more pairs most likely to be confused. Most confusable

Source: Wiktionary (via kaikki.org) Structured Wiktionary extract

Source: FrequencyWords open word-frequency list FrequencyWords open word-frequency list