Which to use
“muchísima” is an adjective and “muchísimo” is an adverb - they look or sound alike but fill different roles in a sentence.
- #13,295
- “muchísima” frequency rank
- #2,621
- “muchísimo” frequency rank
- 15916
- confusion score
Side-by-Side Comparison
| Feature | muchísima | muchísimo |
|---|---|---|
| Definition | Forma del femenino de muchísimo, superlativo de mucho. | Superlativo de mucho: en gran manera. |
Where the eye mixes muchísima and muchísimo
Muted = shared; highlighted = the visual trap. They share 8 letters in sequence. muchísima and muchísimo follow the identical consonant-vowel pattern (CVCCVCVCV). Same shape at a glance is often the real trap, independent of shared letters.
Why the eye confuses muchísima with muchísimo
These two trip readers on the page rather than in the ear: muchísima is [muˈt͡ʃisima] while muchísimo is [muˈt͡ʃisimo]. Spoken aloud the problem disappears. In writing it persists, because they differ by a single letter - a in “muchísima” becomes o in “muchísimo”, and the parts of speech differ too (adjective vs adverb), which is usually the fastest check. Our composite confusion score for this pair is 15916, derived from the frequency rank of both members and their visual similarity.
muchísima is recorded at frequency rank #13,295, classified as anadj, pronounced [muˈt͡ʃisima]. 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 15916, this pair ranks #278,251 of 323,831 scored Spanish confusable pairs - a relatively easy-to-tell-apart pair.
Orthographic DNA of muchísima vs muchísimo
Shared letters: chimsuí. Private to "muchísima": a. Private to "muchísimo": o.
"muchísima" · 9 letters · shape CVCCVCVCV · "muchísimo" · 9 letters · shape CVCCVCVCV
Frequently Asked Questions
Is swapping "muchísima" for "muchísimo" ever safe?
In ordinary Spanish text, does "muchísima" 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 "muchísima" 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 #278,251 of 323,831 scored Spanish confusable pairs in this corpus vintage. Corpus statistics
- "muchísima" and "muchísimo" also get mixed up with nearby pairs, the highest-scored neighbour is "muchísima vs muchísimos". Nearby pair
Confusion rank #278,251 of 323,831 scored Spanish pairs, corpus vintage 2026-09-03, not spelling advice.