tremendously, extremely
Él es tremendamente respetado por sus alumnos.
He is tremendously respected by his students.
Hacer los deberes es tremendamente aburrido.
Doing homework is incredibly boring.
Una asignatura tremendamente fascinante.
A tremendously fascinating subject.
— Harry Potter y la piedra filosofal (2001)
Bali es tremendamente bochornoso en diciembre.
Bali is incredibly sweltering in December.
Something is terribly wrong.
You speak incredibly fast.
Este es un libro tremendamente viejo.
This is an extremely old book.