Which to use
“maximal” is an adjective and “maximum” is a noun - they look or sound alike but fill different roles in a sentence.
- #26,882
- “maximal” frequency rank
- #2,491
- “maximum” frequency rank
- 29373
- confusion score
Side-by-Side Comparison
| Feature | maximal | maximum |
|---|---|---|
| Definition | Largest, greatest (in magnitude), highest, most. | The highest limit. |
Where the eye mixes maximal and maximum
Muted = shared; highlighted = the visual trap. They share 5 letters in sequence.
Visual trap between maximal and maximum
These two trip readers on the page rather than in the ear: maximal is /ˈmæksɪməl/ while maximum is /ˈmæksɪməm/. 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 29373, derived from the frequency rank of both members and their visual similarity.
maximal is recorded at frequency rank #26,882, classified as anadj, pronounced /ˈmæksɪməl/. maximum is at rank #2,491, tagged as anoun, pronounced /ˈmæksɪməm/.
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 29373, this pair ranks #363,542 of 530,003 scored English confusable pairs - roughly mid-pack for confusability.
Orthographic DNA of maximal vs maximum
Shared letters: aimx. Private to "maximal": l. Private to "maximum": u.
"maximal" · 7 letters · shape CVCVCVC · "maximum" · 7 letters · shape CVCVCVC
Known mistypes of this pair
Frequently Asked Questions
Can "maximal" and "maximum" be used interchangeably?
In ordinary English text, does "maximal" or "maximum" show up more?
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 "maximal" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "maximum" - compare definitions side by side with the headword page. Word entry
- This pair ranks #363,542 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
- "maximal" and "maximum" also get mixed up with nearby pairs, the highest-scored neighbour is "maxima vs maximal". 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 #363,542 of 530,003 scored English pairs, corpus vintage 2026-09-03, not spelling advice.