not according to truth or facts; incorrect
That fellow seems to me to possess one idea, and that is a wrong one — Dr Johnson
said of a person, etc: in error; mistaken
against moral standards; evil
not right or proper according to a code, standard, or convention
not in accordance with one's needs, intentions, or expectations
took a wrong turning
not satisfactory, e.g. in condition, health, or temper
being the side of fabric that is not intended to be seen, e.g. on a finished garment
to misunderstand
out of favour with
I wouldn't like to get on the wrong side of her
more than the specified age
He's on the wrong side of forty