n. 一知半解的人

[法] 一知半解的人, 冒充博学者

[ noun ]
an amateur who engages in an activity without serious intentions and who pretends to have knowledge
<noun.person>

Sciolist \Sci"o*list\, n. [L. sciolus. See {Sciolous}.]
One who knows many things superficially; a pretender to
science; a smatterer.

These passages in that book were enough to humble the
presumption of our modern sciolists, if their pride
were not as great as their ignorance. --Sir W.
Temple.

A master were lauded and sciolists shent. --R.
Browning.