a bad idea
Tom explicó por qué era una mala idea hacer eso.
Tom explained why it was a bad idea to do that.
Probablemente no sea yo el único que piense que es una mala idea hacer eso.
I’m probably not the only one who thinks doing that is a bad idea.
De algún modo parece una mala idea.
Somehow, it seems like a bad idea.
— Los muertos no mueren (2019)
He thought it was a bad idea.
Tom pensó que era una mala idea.
Tom thought it was a bad idea.
Tom explicó por qué hacer eso era una mala idea.
Tom explained why doing that was a bad idea.