malvsmorTell them apart

Quick tell: mal is a adverb, mor is an adjective, so they fill different roles in a sentence.

Which to use

“mal” is an adverb and “mor” is an adjective - they look or sound alike but fill different roles in a sentence.

#319
“mal” frequency rank
#6,447
“mor” frequency rank
6766
confusion score

Side-by-Side Comparison

Feature mal mor
Definition de forma pouco satisfatória maior

Where the eye mixes mal and mor

Muted = shared; highlighted = the visual trap. They share 1 letter in sequence.

3 ch
mal
3 ch
mor

Visual trap between mal and mor

These two trip readers on the page rather than in the ear: mal is /ˈmaw/ while mor is /ˈmɔh/ (carioca). 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 (adverb vs adjective), which is usually the fastest check. Our composite confusion score for this pair is 6766, derived from the frequency rank of both members and their visual similarity.

mal is recorded at frequency rank #319, classified as anadv, pronounced /ˈmaw/. mor is at rank #6,447, tagged as anadj, pronounced /ˈmɔh/ (carioca).

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 6766, this pair ranks #67,579 of 75,631 scored Portuguese confusable pairs - a relatively easy-to-tell-apart pair.

Orthographic DNA of mal vs mor

Shared letters: m. Private to "mal": al. Private to "mor": or.

"mal" · 3 letters · shape CVC  ·  "mor" · 3 letters · shape CVC

Frequently Asked Questions

Do "mal" and "mor" mean the same thing in a sentence?
No - they are not even the same part of speech. "mal" is an adverb and "mor" an adjective, so a sentence built for one is usually ungrammatical with the other.
Frequency check: "mal" vs "mor" - which ranks higher?
"mal" is the more common of the two: it sits at frequency rank #319 in our Portuguese list, against #6,447 for "mor". That is a wide gap, so in ordinary text the rarer spelling is the one worth double-checking.

Useful next steps

Pronunciation already separates them, if the page still looks alike, the dictionary links below settle it.

  • Full dictionary entry for "mal" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "mor" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #67,579 of 75,631 scored Portuguese confusable pairs in this corpus vintage. Corpus statistics
  • "mal" and "mor" also get mixed up with nearby pairs, the highest-scored neighbour is "maa vs mor". Nearby pair

Confusion rank #67,579 of 75,631 scored Portuguese pairs, corpus vintage 2026-09-03, not spelling advice.

Source: Wiktionary (via kaikki.org) Structured Wiktionary extract

Source: FrequencyWords open word-frequency list