fundamentadovsfundamentoWhich spelling fits?

Quick tell: fundamentado is a adjective, fundamento is a noun, so they fill different roles in a sentence.

Which to use

“fundamentado” is an adjective and “fundamento” is a noun - they look or sound alike but fill different roles in a sentence.

#36,034
“fundamentado” frequency rank
#9,057
“fundamento” frequency rank
45091
confusion score

Side-by-Side Comparison

Feature fundamentado fundamento
Definition que tem ou a que se deu fundamento alicerce, base

Where the eye mixes fundamentado and fundamento

Muted = shared; highlighted = the visual trap. They share 10 letters in sequence. fundamentado runs 12 letters (CVCCVCVCCVCV) against fundamento's 10 (CVCCVCVCCV) - the length gap alone is often enough to separate them once you know to check it.

12 ch
fundamentado
10 ch
fundamento

Visual trap between fundamentado and fundamento

These two trip readers on the page rather than in the ear: fundamentado is /fũ.dɐ.mẽ.ˈta.du/ while fundamento is /fũ.dɐ.ˈmẽ.tu/. Spoken aloud the problem disappears. In writing it persists, because they differ by 2 letter(s) in length, and the parts of speech differ too (adjective vs noun), which is usually the fastest check. Our composite confusion score for this pair is 45091, derived from the frequency rank of both members and their visual similarity.

fundamentado is recorded at frequency rank #36,034, classified as anadj, pronounced /fũ.dɐ.mẽ.ˈta.du/. fundamento is at rank #9,057, tagged as anoun, pronounced /fũ.dɐ.ˈmẽ.tu/.

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 45091, this pair ranks #20,337 of 75,631 scored Portuguese confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of fundamentado vs fundamento

Shared letters: adefmnotu. Private to "fundamentado": -. Private to "fundamento": -.

"fundamentado" · 12 letters · shape CVCCVCVCCVCV  ·  "fundamento" · 10 letters · shape CVCCVCVCCV

Known mistypes of this pair

  • fundamentado ← ffundamentado · fnudamentado · fudnamentado · funadmentado · fundaemntado · fundamenatdo · fundamenntado · fundamentaddo
  • fundamento ← ffundamento · fnudamento · fudnamento · funadmento · fundaemnto · fundamennto · fundamenot · fundamentto

Frequently Asked Questions

Do "fundamentado" and "fundamento" mean the same thing in a sentence?
No - they are not even the same part of speech. "fundamentado" is an adjective and "fundamento" a noun, so a sentence built for one is usually ungrammatical with the other.
In ordinary Portuguese text, does "fundamentado" or "fundamento" show up more?
"fundamento" is the more common of the two: it sits at frequency rank #9,057 in our Portuguese list, against #36,034 for "fundamentado". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

Useful next steps

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

  • Full dictionary entry for "fundamentado" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "fundamento" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #20,337 of 75,631 scored Portuguese confusable pairs in this corpus vintage. Corpus statistics
  • "fundamentado" and "fundamento" also get mixed up with nearby pairs, the highest-scored neighbour is "fundamentação vs fundamentado". 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 #20,337 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