1: not according to the moral standard : sinful, immoral <thought that war was wrong> 2: not right or proper according to a code, standard, or convention : improper <it was wrong not to thank your host> 3: not according to truth or facts : incorrect <gave a wrong date> 4: not satisfactory (as in condition, results, health, or temper) 5: not in accordance with one's needs, intent, or expectations <took the wrong bus> 6: of, relating to, or constituting the side of something that is usually held to be opposite to the principal one, that is the one naturally or by design turned down, inward, or away, or that is the least finished or polished