noun, noun which may take the genitive case particle 'no'
amateur; non-professional
Refers to someone who engages in an activity for love rather than money, or to something done at a non-professional level. Can be used as a noun or with の to modify another noun.
彼はアマチュアの写真家ですが、プロ並みの腕前です。
He is an amateur photographer, but his skill is on a par with a professional's.
アマチュア
I plan to get an amateur radio license.