Junior and Scratcher

Junior adjective - Having not so great importance or rank as another.

Scratcher and junior are semantically related In some cases you can replace term "Scratcher" with "Junior", this adjectives are similar.

Scratcher noun - A person who scratches to relieve an itch.

Junior and scratcher are semantically related in petty topic. Sometimes you can use "Junior" instead an adjective "Scratcher", if it concerns topics such as trivial.