Which to use
“infernal” is an adjective and “interval” is a noun - they look or sound alike but fill different roles in a sentence.
- #28,956
- “infernal” frequency rank
- #10,068
- “interval” frequency rank
- 39024
- confusion score
Side-by-Side Comparison
| Feature | infernal | interval |
|---|---|---|
| Definition | Of or relating to hell, or the world of the dead; hellish. | A distance in space. |
Where the eye mixes infernal and interval
Muted = shared; highlighted = the visual trap. They share 6 letters in sequence.
Look-alike desk: infernal vs interval
These two trip readers on the page rather than in the ear: infernal is /ɪnˈfɜː(ɹ)nəl/ while interval is /ˈɪntəvəl/. Spoken aloud the problem disappears. In writing it persists, because they share most of their letters but differ in 2 positions, and the parts of speech differ too (adjective vs noun), which is usually the fastest check. Our composite confusion score for this pair is 39024, derived from the frequency rank of both members and their visual similarity.
infernal is recorded at frequency rank #28,956, classified as anadj, pronounced /ɪnˈfɜː(ɹ)nəl/. interval is at rank #10,068, tagged as anoun, pronounced /ˈɪntəvəl/.
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 39024, this pair ranks #280,564 of 530,003 scored English confusable pairs - roughly mid-pack for confusability.
Orthographic DNA of infernal vs interval
Shared letters: aeilnr. Private to "infernal": f. Private to "interval": tv.
"infernal" · 8 letters · shape VCCVCCVC · "interval" · 8 letters · shape VCCVCCVC
Known mistypes of this pair
Frequently Asked Questions
Is swapping "infernal" for "interval" ever safe?
In ordinary English text, does "infernal" or "interval" show up more?
What to do next
Eye-level mix-up between "infernal" and "interval" is sorted above. Next: full entries or other pairs that share a letter shape.
- Full dictionary entry for "infernal" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "interval" - compare definitions side by side with the headword page. Word entry
- This pair ranks #280,564 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
- "infernal" and "interval" also get mixed up with nearby pairs, the highest-scored neighbour is "infernal vs inferno". 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 #280,564 of 530,003 scored English pairs, corpus vintage 2026-09-03, not spelling advice.