I.
noun
1 sb who does an activity for pleasure, not money
ADJECTIVE
▪ gifted , talented , top
▪ enthusiastic ( esp. BrE ), keen ( BrE )
▪ gentleman ( BrE )
▪
International affairs today are no longer for gentleman ~s.
PREPOSITION
▪ as an ~
▪
I was competing as an ~.
2 sb who is not very good at sth
ADJECTIVE
▪ bumbling ( esp. BrE ), complete , rank
▪
The others had often been skiing before and made her feel like a rank ~.
… OF AMATEURS
▪ bunch
▪
They're just a bunch of ~s.
II.
adj.
Amateur is used with these nouns: ↑ actor, actress , ↑ archaeologist , ↑ artist , ↑ athlete , ↑ athletics , ↑ boxing , ↑ circuit , ↑ cook , ↑ detective , ↑ football , ↑ footballer , ↑ gardener , ↑ golf , ↑ golfer , ↑ historian , ↑ jockey , ↑ musician , ↑ orchestra , ↑ painter , ↑ performance , ↑ performer , ↑ photographer , ↑ photography , ↑ production , ↑ rank , ↑ rugby , ↑ singer , ↑ soccer , ↑ sport , ↑ sportsman, sportswoman , ↑ status , ↑ theatre , ↑ tournament , ↑ video