Lacking skill, experience, or professional quality; done by a person who is not trained or skilled.
From 'amateur' (from French and Latin 'amator' meaning 'lover'), plus the suffix '-ish' (meaning 'somewhat' or 'having qualities of'). An amateur is literally a 'lover' of something who does it for passion rather than money. The '-ish' suffix makes it mean 'like an amateur' or 'characteristic of an amateur.'
The term 'amateur' originally wasn't an insult at all—it meant someone who loved their craft so much they did it for free! Over time, 'amateurish' became negative because professionals did things better, but it's worth remembering that some 'amateurish' works are created by people with pure passion for their art.
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