He's a mere 'amateur' when it comes to cooking. [=he doesn't know how to cook well]
She played soccer as an 'amateur' before turning professional.
These photos were taken by both 'amateurs' and professionals.
(..) though, have we? Well, one or two. Or or . What?! I'm not the only senior officer who did this. Gregson... Shut up! An amateur detective given access to all sorts of classified information. And now he's a suspect in a case. With all due respect... You're a bloody idiot, Lestrade! Do it! (..)2012 TvShow: Sherlock Title: The Reichenbach Fall Season: 2 Episode 3