Good-for-nothing and Second-class

Good-for-nothing adjective - Having no ambition, success, or value to society.

Second-class and good-for-nothing are semantically related In some cases you can use "Second-class" instead an adjective phrase "Good-for-nothing".

Second-class adjective - Of little or less value or merit.

Good-for-nothing and second-class are semantically related in inferior topic. Sometimes you can use "Good-for-nothing" instead an adjective phrase "Second-class".