sério
Portuguese, noun
sério is spelled S-É-R-I-O (5 letters) and appears 178 times per million words in written Portuguese, the 534th most frequent Portuguese word form (wordfreq, 2021 data). Sério is a Portuguese masculine noun meaning “A game in which two people stare at each other and the first one to laugh loses” (English Wiktionary, September 2026). Without its accent, serio is a different word: “pre-reform spelling (used until 1943 in Brazil and 1911 in Portugal)…”.
What does sério mean in English?
adjective
- 1
serious; solemn (without humor or expression of happiness)
João é uma pessoa séria.
- 2
serious (needing great attention; leaving no room for play)
Crime é um problema sério.
- 3
dangerous
Pneumonia é uma doença séria.
- 4
which can’t be joked about; no laughing matter
Autismo é coisa séria.
- 5
grave
A queda de um prédio é um acidente sério.
adverb
- 1
in a serious manner; in a manner concerning serious matters
Preciso falar sério contigo.
- 2
in a manner concerning serious matters
noun
- 1
masculineA game in which two people stare at each other and the first one to laugh loses.
interjection
- 1
really? (indicates surprise at, or requesting confirmation of some new information)
adjective
- 1
pre-reform spelling (used until 1943 in Brazil and 1911 in Portugal) of sério
verb
- 1
first-person singular present indicative of seriar
Source: English Wiktionary, Portuguese section, dump of September 2, 2026 (CC BY-SA 4.0).
How Portuguese dictionaries define it
adjective: 1. que demonstra profundo pensar 2. de disposição, maneira ou caráter grave, sóbrio 3. que denota sinceridade, não de brincadeira 4. que requer pensamento, concentração, aplicação
noun: 1. município brasileiro do estado do Rio Grande do Sul
The definition in the Portuguese Wiktionary (Wikcionário), in Portuguese.
Source: Portuguese Wiktionary (Wikcionário), dump of September 1, 2026 (CC BY-SA 4.0), through kaikki.org.
Forms of sério
- seria feminine
- serios masculine plural
- serias feminine plural
- séria feminine
- sérios masculine plural
- sérias feminine plural
- mais sério comparative
- o mais sério superlative
- seriíssimo superlative
- seríssimo superlative
- seriozinho diminutive
- seriinho diminutive
- seriozão augmentative
- serião augmentative colloquial
- serio alternative
Source: English Wiktionary and Portuguese Wiktionary (Wikcionário) (dumps of September 2, 2026 and September 1, 2026).
English words that translate to sério
Source: the translation tables of the English Wiktionary, dump of September 2, 2026.
How common is sério in Portuguese?
sério appears 178 times per million words in written Portuguese.
Source: written frequency: wordfreq 3.1 (a 2021 snapshot of Wikipedia, subtitles, news, books, web text and social media).