Translation of "Unwanted" in Spanish

STI's and unwanted pregnancies,

ETS y embarazos no deseados,

I keep receiving unwanted emails.

Me siguen llegando correos no deseados.

We will face an unwanted picture

Nos enfrentaremos a una imagen no deseada

Well, noise is defined as unwanted sound,

El ruido se define como sonido no deseado

Is the number one reason for unwanted hook ups,

es la razón número uno para sexo casual no deseado,

Tried to force the Caesarians into an unwanted and unfavorable engagement against his legions,

intentó forzar a los cesarianos a un encuentro desfavorable y no deseado contra sus legiones,