serio
Spanish, adjective
serio is spelled S-E-R-I-O (5 letters) and appears 110 times per million words in written Spanish, the 803rd most frequent Spanish word form (wordfreq, 2021 data). Serio is a Spanish adjective meaning “serious, earnest, sober, solemn (without humor)” (English Wiktionary, September 2026). It is also a first-person singular present indicative of seriar. With an accent, serió is a different word: “third-person singular preterite indicative of seriar”. The Spanish Wiktionary (Wikcionario) defines it as “Que se comporta con gravedad y circunspección”.
What does serio mean in English?
adjective
- 1
serious, earnest, sober, solemn (without humor)
- 2
serious, grave, deep (important, weighty)
- 3
serious (really intending what was said)
- 4
straight (demeanor)
Mi culpa. Solo no podía mantener la cara seria por mucho tiempo. Era imposible.
- 5
staid (formal)
Su despedida de soltero parece que va a ser un evento muy serio. Digo, se espera que usemos vestimenta formal.
verb
- 1
first-person singular present indicative of seriar
verb
- 1
third-person singular preterite indicative of seriar
Source: English Wiktionary, Spanish section, dump of September 2, 2026 (CC BY-SA 4.0).
How Spanish dictionaries define it
adjective: 1. Que se comporta con gravedad y circunspección. 2. Dicho de una acción, realizada con gravedad y circunspección. 3. Que tiene importancia o consecuencia. 4. Carente de humor.
The definition in the Spanish Wiktionary (Wikcionario), in Spanish.
Source: Spanish Wiktionary (Wikcionario), dump of September 1, 2026 (CC BY-SA 4.0), through kaikki.org.
Forms of serio
- seria feminine
- serios masculine plural
- serias feminine plural
- serísimo superlative
Source: English Wiktionary and Spanish Wiktionary (Wikcionario) (dumps of September 2, 2026 and September 1, 2026).
English words that translate to serio
Source: the translation tables of the English Wiktionary, dump of September 2, 2026.
How common is serio in Spanish?
serio appears 110 times per million words in written Spanish.
Source: written frequency: wordfreq 3.1 (a 2021 snapshot of Wikipedia, subtitles, news, books, web text and social media).