inútilvsinútilesWhat's the difference?

Which to use

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

#4,086
“inútil” frequency rank
#8,013
“inútiles” frequency rank
12099
confusion score

Side-by-Side Comparison

Feature inútil inútiles
Definition Aquello que no es útil, no sirve o no cumple su función. Forma del plural de inútil.

Where the eye mixes inútil and inútiles

Muted = shared; highlighted = the visual trap. They share 6 letters in sequence. inútil runs 6 letters (VCVCVC) against inútiles's 8 (VCVCVCVC) - the length gap alone is often enough to separate them once you know to check it.

6 ch
inútil
8 ch
inútiles

Visual trap between inútil and inútiles

A purely visual mix-up. inútil ([iˈnut̪il]) and inútiles ([iˈnut̪iles]) 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 2 extra letter(s) - “inútil” sits inside “inútiles”. Our composite confusion score for this pair is 12099, derived from the frequency rank of both members and their visual similarity.

inútil is recorded at frequency rank #4,086, classified as anadj, pronounced [iˈnut̪il]. inútiles is at rank #8,013, tagged as anadj, pronounced [iˈnut̪iles].

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 12099, this pair ranks #292,738 of 323,831 scored Spanish confusable pairs - a relatively easy-to-tell-apart pair.

Orthographic DNA of inútil vs inútiles

Shared letters: ilntú. Private to "inútil": -. Private to "inútiles": es.

"inútil" · 6 letters · shape VCVCVC  ·  "inútiles" · 8 letters · shape VCVCVCVC

Frequently Asked Questions

Is swapping "inútil" for "inútiles" ever safe?
No. They are said differently ([iˈnut̪il] versus [iˈnut̪iles]) and carry different meanings; reading the sentence aloud is usually enough to catch the wrong one.
Which is more common, "inútil" or "inútiles"?
"inútil" is the more common of the two: it sits at frequency rank #4,086 in our Spanish list, against #8,013 for "inútiles". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

After this comparison

Visual near-miss handled. Browse the word pages or a neighbour when the next look-alike shows up.

  • Full dictionary entry for "inútil" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "inútiles" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #292,738 of 323,831 scored Spanish confusable pairs in this corpus vintage. Corpus statistics
  • "inútil" and "inútiles" also get mixed up with nearby pairs, the highest-scored neighbour is "inti vs inútil". Nearby pair

Confusion rank #292,738 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