a Jill of all trades is a master of none

a Jill of all trades is a master of none

A woman who is somewhat skilled in or adept at a wide variety of tasks or abilities will not have the time or dedication to become truly masterful in any one thing. The female equivalent of the proverb "a Jack of all trades is a master of none." Mary just sort of floated between different interests after she left high school, but never really developed anything career-worthy. A Jill of all trades is a master of none, as they say.
See also: all, jill, master, none, of, trade