This is the 3848th most frequent Spanish word.
sostenido
"Sostenido" means "sustained" or "held" in English.
Here, 'sostenido' is used as a past participle to describe that the argument was maintained or supported strongly.
El argumento del escritor fue sostenido con múltiples evidencias.
The writer's argument was supported with multiple pieces of evidence.
In this context, 'sostenido' refers to a musical term indicating that the pitch is sustained or held for a duration.
El cantante alcanzó un tono sostenido por varios segundos.
The singer held a sustained pitch for several seconds.
Here, 'sostenido' describes an ongoing and consistent effort or attitude.