Nonentity and Small beer

Nonentity noun - A conception or image created by the imagination and having no objective reality.

Small beer and nonentity are semantically related. (British) In some cases you can use "Small beer" instead a noun "Nonentity". informal substitute

Small beer noun - Something of little importance.

Nonentity and small beer are semantically related. Sometimes you can replace term "Nonentity" with "Small beer", this terms are similar.