harmless
El sonido era irritante, pero inofensivo para el cuerpo humano.
The sound was irritating, but harmless to the human body.
It's completely harmless.
Es totalmente inofensivo y lindo como un conejito.
It's totally harmless and cute as a bunny.
Él es un sujeto totalmente inofensivo.
He's a completely harmless guy.
No fue nada inofensivo a mi parecer.
It wasn't harmless at all in my opinion.