Which to use
“infernal” and “informal” are a confusable Spanish pair: similar on the page, but distinct in meaning, check the gloss before you choose.
- #17,171
- “infernal” frequency rank
- #8,533
- “informal” frequency rank
- 25704
- confusion score
Side-by-Side Comparison
| Feature | infernal | informal |
|---|---|---|
| Definition | Que pertenece o concierne al infierno. | Que no sigue o tiene las formas, reglas, normas o convenciones establecidas. |
Where the eye mixes infernal and informal
Muted = shared; highlighted = the visual trap. They share 6 letters in sequence. infernal and informal follow the identical consonant-vowel pattern (VCCVCCVC). Same shape at a glance is often the real trap, independent of shared letters.
Look-alike desk: infernal vs informal
A purely visual mix-up. infernal ([ĩɱfeɾˈnal]) and informal ([ĩɱfoɾˈmal]) 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 25704, derived from the frequency rank of both members and their visual similarity.
infernal is recorded at frequency rank #17,171, classified as anadj, pronounced [ĩɱfeɾˈnal]. informal is at rank #8,533, tagged as anadj, pronounced [ĩɱfoɾˈmal].
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 25704, this pair ranks #235,205 of 323,831 scored Spanish confusable pairs - roughly mid-pack for confusability.
Orthographic DNA of infernal vs informal
Shared letters: afilnr. Private to "infernal": e. Private to "informal": mo.
"infernal" · 8 letters · shape VCCVCCVC · "informal" · 8 letters · shape VCCVCCVC
Known mistypes of this pair
Frequently Asked Questions
Is swapping "infernal" for "informal" ever safe?
Which is more common, "infernal" or "informal"?
What to do next
Visual near-miss handled. Browse the word pages or a neighbour when the next look-alike shows up.
- Full dictionary entry for "infernal" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "informal" - compare definitions side by side with the headword page. Word entry
- This pair ranks #235,205 of 323,831 scored Spanish confusable pairs in this corpus vintage. Corpus statistics
- "infernal" and "informal" also get mixed up with nearby pairs, the highest-scored neighbour is "infernal vs infernales". Nearby pair
- Recorded mistypes exist for at least one side of this pair, useful when a spell-checker or OCR lands on the wrong form. See mistypes
Confusion rank #235,205 of 323,831 scored Spanish pairs, corpus vintage 2026-09-03, not spelling advice.