Translation of "worthless" into Slovak

You've turned this perfectly worthless loser into an addict.

Zmenila si tohto perfektne bezcenného smoliara na závisláka.

This must actually be achieved by the limit values set, as otherwise such a directive is worthless.

To treba vlastne docieliť stanovenými limitnými hodnotami, lebo inak je smernica zbytočná.

You have a nauseous ache in your stomach that you're a worthless failure?

Nemáš taký pocit v žalúdku, že si úplne neschopný?