Etymologically

Etymology and origin of the Spanish word inmaduro

Confidence
Probable
Formation
Borrowing
First attested
1734 Diccionario de Autoridades, with a quotation from L. Argensola More words from the 18th century
Borrowed from
Latin immaturus
Ultimate origin
Latin mātūrus
Etymology tree
inherited borrowed derived
Latin mātūrus
Spanish maduro
English mature
Latin immātūrus
English immature
Spanish inmaduro
From the same root
Latin mātūrē ← mātūrus
Latin mātūrēscō ← mātūrus
Latin mātūritās ← mātūrus
Latin mātūrō ← mātūrus
Latin praemātūrus ← mātūrus

Pronunciation

  • /immaˈduɾo/, [ĩm.maˈð̞u.ɾo][1]

Forms

inmaduro (feminine inmadura, masculine plural inmaduros, feminine plural inmaduras)[1] The Autoridades spells it immaduro, after the Latin.[2]

Etymology

Wiktionary treats it as a learned borrowing, borrowed from Latin immātūrus (“unripe, immature; untimely”), adapted to the form of maduro.[1] The Autoridades also derives it from the Latin adjective.[2] Alemany and the Spanish Wiktionary analyse it instead as formed from Spanish in- + maduro.[3][4]

That adjective is formed from Latin in- (“not”) + mātūrus (“ripe”).[5][1] Spanish also has the more Latin form inmaturo, which Corominas lists as a learned word beside the popular one.[6]

Earliest recorded meaning

The Diccionario de Autoridades (volume 4, 1734) defines immaduro as “not in season, or not ripe” and quotes a line from L. Argensola's Rimas: para quitalle la immadura vida “to take away his unripe life”.[2]

Semantic evolution

In the 19th century the word was felt to be obsolete: Salvá (1846) and the Academy's editions of 1869 and 1884 marked it as old and sent the reader to inmaturo.[7][8][9] In the 18th-century Americas the form recorded is inmaturo, as in Lima in 1791 (frutos inmaturos).[10] Today inmaduro is the usual word: the DLE defines it as not yet having reached maturity, and, of people, inexperienced.[11] Moliner and the Vox apply it to fruit, to projects not yet worked out, and to people without the maturity of their age; medical usage applies it to incomplete physical or mental development.[12][13][14]

Timeline

  • 1734 – the Autoridades records immaduro with a quotation from Argensola.[2]
  • 1791 – frutos inmaturos in Lima, with the other form.[10]
  • 1846 – Salvá marks inmaduro as old, the same as inmaturo.[7]
  • 1884 – the Academy still labels it obsolete.[9]

Meanings

Adjective

  1. Not yet mature or ripe: frutos inmaduros.[11][1][12]
  2. (also as a noun) Inexperienced; lacking the maturity expected for one's age: Se comporta como un inmaduro.[11][13]
  3. Of a plan or project: not yet worked out.[12][13]

Word family

  • inmadurez

References

  1. ^ a b c d e Wiktionary, the free dictionary, https://en.wiktionary.org
  2. ^ a b c d Real Academia Española (1726–1739), Diccionario de la lengua castellana (Diccionario de Autoridades), 6 vols., Madrid: Francisco del Hierro, p. 4, 215
  3. ^ Alemany y Bolufer, José (1917), Diccionario de la lengua española, Barcelona: Ramón Sopena, p. 951
  4. ^ Wikcionario (Spanish Wiktionary), es.wiktionary.org
  5. ^ Glare, P. G. W., ed. (2012), Oxford Latin Dictionary, 2nd ed., Oxford: Oxford University Press, p. s.v. immātūrus
  6. ^ Corominas, Joan (1973), Breve diccionario etimológico de la lengua castellana, 3rd ed., Madrid: Gredos, p. s.v. maduro
  7. ^ a b Salvá, Vicente (1846), Nuevo diccionario de la lengua castellana, París: Librería de Don Vicente Salvá, p. 617
  8. ^ Real Academia Española (1869), Diccionario de la lengua castellana, 11th ed., Madrid: Imprenta de Don Manuel Rivadeneyra, p. 435
  9. ^ a b Real Academia Española (1884), Diccionario de la lengua castellana, 12th ed., Madrid: Imprenta de D. Gregorio Hernando (the first Academy edition with etymologies), p. 598
  10. ^ a b Boyd-Bowman, Peter (2003), Léxico hispanoamericano 1493–1993, ed. Ray Harris-Northall and John J. Nitti, New York: Hispanic Seminary of Medieval Studies, p. s.v. inmaduro
  11. ^ a b c Real Academia Española; Asociación de Academias de la Lengua Española (2014–), Diccionario de la lengua española, 23rd ed., online version 23.8, https://dle.rae.es, p. s.v. inmaduro
  12. ^ a b c Moliner, María (2007), Diccionario de uso del español, 3rd ed., Madrid: Gredos, p. s.v. inmaduro
  13. ^ a b c Battaner Arias, Paz (dir.) (2017), Diccionario general de la lengua española VOX, Barcelona: Larousse Editorial, p. s.v. inmaduro
  14. ^ Real Academia Nacional de Medicina (2011), Diccionario de términos médicos, Madrid: Editorial Médica Panamericana; online at https://dtme.ranm.es, p. s.v. inmaduro

Related etymologies

Cite this entry

“Inmaduro.” Etymologically, 7 Nov. 2026, etymologically.com/es/inmaduro. Accessed 7 Nov. 2026.

Last edited on . ·