How to Say "hundred-year-old" in Spanish
The Spanish word for “hundred-year-old” is “centenario” — B1 level.

Examples
Este olivo centenario ha visto pasar muchas generaciones.
This hundred-year-old olive tree has seen many generations pass.
Visitamos una bodega centenaria en el norte de España.
We visited a century-old winery in northern Spain.
La universidad celebró su historia centenaria con un desfile.
The university celebrated its hundred-year history with a parade.
Matching the Gender
This word changes its ending based on what you are describing. Use 'centenario' for masculine things (un árbol) and 'centenaria' for feminine things (una casa).
Placement After the Noun
In Spanish, this adjective almost always comes after the thing it describes to add a specific quality of age.
Using it for 'General' Oldness
Mistake: “Esa leche es centenaria.”
Correction: Esa leche es muy vieja (o está caducada).
Related Translations
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