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 eye mixes muchísimas and muchísimo
Muted = shared; highlighted = the visual trap. They share 8 letters in sequence. muchísimas runs 10 letters (CVCCVCVCVC) against muchísimo's 9 (CVCCVCVCV) - the length gap alone is often enough to separate them once you know to check it.
Visual trap between muchísimas and muchísimo
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
Frequently Asked Questions
Can "muchísimas" and "muchísimo" be used interchangeably?
In ordinary Spanish text, does "muchísimas" or "muchísimo" show up more?
Useful next steps
Visual near-miss handled. Browse the word pages or a neighbour when the next look-alike shows up.
- Full dictionary entry for "muchísimas" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "muchísimo" - compare definitions side by side with the headword page. Word entry
- This pair ranks #303,113 of 323,831 scored Spanish confusable pairs in this corpus vintage. Corpus statistics
- "muchísimas" and "muchísimo" also get mixed up with nearby pairs, the highest-scored neighbour is "muchísima vs muchísimas". Nearby pair
Confusion rank #303,113 of 323,831 scored Spanish pairs, corpus vintage 2026-09-03, not spelling advice.