expensive, costly
La educación, niño, es costosa.
Education, child, is expensive.
— La historia de David Copperfield (2019)
La investigación en las causas del cáncer es muy costosa.
Research into the causes of cancer is very expensive.
Tom le compró a Mary una cámara bastante costosa.
Tom bought Mary a rather expensive camera.
Yo no tengo nada de joyería costosa.
I don't have any expensive jewelry.
Esa tienda es excepcionalmente costosa.
That store is exceptionally expensive.