Which to use
“montañas” is a noun and “montañosa” is an adjective - they look or sound alike but fill different roles in a sentence.
- #3,270
- “montañas” frequency rank
- #25,363
- “montañosa” frequency rank
- 28633
- confusion score
Side-by-Side Comparison
| Feature | montañas | montañosa |
|---|---|---|
| Definition | Forma del plural de montaña. | Forma del femenino de montañoso. |
Where the eye mixes montañas and montañosa
Muted = shared; highlighted = the visual trap. They share 7 letters in sequence. montañas runs 8 letters (CVCCVCVC) against montañosa's 9 (CVCCVCVCV) - the length gap alone is often enough to separate them once you know to check it.
Why the eye confuses montañas with montañosa
These two trip readers on the page rather than in the ear: montañas is [mõn̪ˈt̪aɲas] while montañosa is [mõn̪t̪aˈɲosa]. 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 (noun vs adjective), which is usually the fastest check. Our composite confusion score for this pair is 28633, derived from the frequency rank of both members and their visual similarity.
montañas is recorded at frequency rank #3,270, classified as anoun, pronounced [mõn̪ˈt̪aɲas]. montañosa is at rank #25,363, tagged as anadj, pronounced [mõn̪t̪aˈɲosa].
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 28633, this pair ranks #221,033 of 323,831 scored Spanish confusable pairs - roughly mid-pack for confusability.
Orthographic DNA of montañas vs montañosa
Shared letters: amnostñ. Private to "montañas": -. Private to "montañosa": -.
"montañas" · 8 letters · shape CVCCVCVC · "montañosa" · 9 letters · shape CVCCVCVCV
Frequently Asked Questions
Is swapping "montañas" for "montañosa" ever safe?
In ordinary Spanish text, does "montañas" or "montañosa" show up more?
What to do next
Pronunciation already separates them, if the page still looks alike, the dictionary links below settle it.
- Full dictionary entry for "montañas" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "montañosa" - compare definitions side by side with the headword page. Word entry
- This pair ranks #221,033 of 323,831 scored Spanish confusable pairs in this corpus vintage. Corpus statistics
- "montañas" and "montañosa" also get mixed up with nearby pairs, the highest-scored neighbour is "montamos vs montañosa". Nearby pair
Confusion rank #221,033 of 323,831 scored Spanish pairs, corpus vintage 2026-09-03, not spelling advice.