"With" or "By" or "of" or "from"
This is a property of the particular word bored, and seems to be in the process of changing.
This ngram shows that bored with is overwhelmingly the most common, but that bored of has been on the rise since the 1990s.
This is a property of the particular word bored, and seems to be in the process of changing.
This ngram shows that bored with is overwhelmingly the most common, but that bored of has been on the rise since the 1990s.