montañosavsmontañosasTell them apart

Which to use

“montañosa” and “montañosas” are a confusable Spanish pair: similar on the page, but distinct in meaning, check the gloss before you choose.

#25,363
“montañosa” frequency rank
#34,221
“montañosas” frequency rank
59584
confusion score

Side-by-Side Comparison

Feature montañosa montañosas
Definition Forma del femenino de montañoso. Forma del femenino plural de montañoso.

Where the eye mixes montañosa and montañosas

Muted = shared; highlighted = the visual trap. They share 9 letters in sequence. montañosa runs 9 letters (CVCCVCVCV) against montañosas's 10 (CVCCVCVCVC) - the length gap alone is often enough to separate them once you know to check it.

9 ch
montañosa
10 ch
montañosas

Visual trap between montañosa and montañosas

A purely visual mix-up. montañosa ([mõn̪t̪aˈɲosa]) and montañosas ([mõn̪t̪aˈɲosas]) are said differently, so reading them aloud is the quickest way to catch the wrong one. On the page they stay close: they differ by 1 extra letter(s) - “montañosa” sits inside “montañosas”. Our composite confusion score for this pair is 59584, derived from the frequency rank of both members and their visual similarity.

montañosa is recorded at frequency rank #25,363, classified as anadj, pronounced [mõn̪t̪aˈɲosa]. montañosas is at rank #34,221, tagged as anadj, pronounced [mõn̪t̪aˈɲosas].

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 59584, this pair ranks #62,076 of 323,831 scored Spanish confusable pairs - among the most confusable pairs.

Orthographic DNA of montañosa vs montañosas

Shared letters: amnostñ. Private to "montañosa": -. Private to "montañosas": -.

"montañosa" · 9 letters · shape CVCCVCVCV  ·  "montañosas" · 10 letters · shape CVCCVCVCVC

Frequently Asked Questions

Can "montañosa" and "montañosas" be used interchangeably?
No. They are said differently ([mõn̪t̪aˈɲosa] versus [mõn̪t̪aˈɲosas]) and carry different meanings; reading the sentence aloud is usually enough to catch the wrong one.
Frequency check: "montañosa" vs "montañosas" - which ranks higher?
"montañosa" is the more common of the two: it sits at frequency rank #25,363 in our Spanish list, against #34,221 for "montañosas". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

Useful next steps

Pronunciation already separates them, if the page still looks alike, the dictionary links below settle it.

  • Full dictionary entry for "montañosa" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "montañosas" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #62,076 of 323,831 scored Spanish confusable pairs in this corpus vintage. Corpus statistics
  • "montañosa" and "montañosas" also get mixed up with nearby pairs, the highest-scored neighbour is "montañosas vs montañoso". Nearby pair

Confusion rank #62,076 of 323,831 scored Spanish pairs, corpus vintage 2026-09-03, not spelling advice.

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

Source: FrequencyWords open word-frequency list