Which to use
“árduo” and “árido” are a confusable Portuguese pair: similar on the page, but distinct in meaning, check the gloss before you choose.
- #22,504
- “árduo” frequency rank
- #25,518
- “árido” frequency rank
- 48022
- confusion score
Side-by-Side Comparison
| Feature | árduo | árido |
|---|---|---|
| Definition | de difícil acesso | sem umidade |
Where the eye mixes árduo and árido
Muted = shared; highlighted = the visual trap. They share 4 letters in sequence. árduo (VCCVV) and árido (VCVCV) run the same length but a different consonant-vowel pattern - the shape difference is usually the fastest tell.
Why the eye confuses árduo with árido
A purely visual mix-up. árduo (/ˈaɾ.dwu/) and árido (/ˈa.ɾi.du/) are said differently, so reading them aloud is the quickest way to catch the wrong one. On the page they stay close: they share most of their letters but differ in 2 positions. Our composite confusion score for this pair is 48022, derived from the frequency rank of both members and their visual similarity.
árduo is recorded at frequency rank #22,504, classified as anadj, pronounced /ˈaɾ.dwu/. árido is at rank #25,518, tagged as anadj, pronounced /ˈa.ɾi.du/.
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 48022, this pair ranks #17,198 of 75,631 scored Portuguese confusable pairs - among the most confusable pairs.
Orthographic DNA of árduo vs árido
Shared letters: dorá. Private to "árduo": u. Private to "árido": i.
"árduo" · 5 letters · shape VCCVV · "árido" · 5 letters · shape VCVCV
Frequently Asked Questions
Is swapping "árduo" for "árido" ever safe?
Frequency check: "árduo" vs "árido" - which ranks higher?
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 "árduo" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "árido" - compare definitions side by side with the headword page. Word entry
- This pair ranks #17,198 of 75,631 scored Portuguese confusable pairs in this corpus vintage. Corpus statistics
- "árduo" and "árido" also get mixed up with nearby pairs, the highest-scored neighbour is "alado vs árido". Nearby pair
Confusion rank #17,198 of 75,631 scored Portuguese pairs, corpus vintage 2026-09-03, not spelling advice.