A jack-of-all-trades who excels at many tasks but masters none; someone skillful in many things but not outstanding in any one area.
彼は器用貧乏で、何でもできるが専門技術はない。
He's a jack-of-all-trades—he can do anything but lacks specialist skills.
器用貧乏にならないよう、一つの分野を深めることにした。
To avoid being a jack-of-all-trades, I decided to deepen my knowledge in one field.
小さな会社では器用貧乏な人材が重宝される場合もある。
In small companies, versatile (but not specialized) people can sometimes be valued.