dilettante

A person who cultivates an area of interest without real commitment or knowledge; an amateur.

• dilettantism/ˌdɪlɪˈtæntɪzəm/(n)浅尝辄止
• dilettantish/ˌdɪlɪˈtæntɪʃ/(adj)业余的

• mere dilettante
• intellectual dilettante
• dilettante approach
• dilettante painter

1. 1.He dismissed his rival as a dilettante who dabbled in science without understanding it. (superficial amateur)
2. 2.She feared being seen as a dilettante rather than a serious artist. (not committed)

• amateur/ˈæmətə/— non-professional, not always negative
• dabbler/ˈdæblə/— someone who tries things without commitment
• novice/ˈnɒvɪs/— beginner

from Italian "dilettante" — "dilettare" = to delight — from Latin "delectare" — one who delights in something (but only on the surface)