YOU SAID:

I'm obnoxious and I'm heartless

INTO JAPANESE

私は不快で、私は無情です

BACK INTO ENGLISH

i'm nasty and i'm heartless

INTO JAPANESE

私は意地悪で無情です

BACK INTO ENGLISH

I'm mean and heartless

INTO JAPANESE

私は卑劣で無情です

BACK INTO ENGLISH

I'm mean and heartless