beyond ken

beyond (one's) ken

Advanced beyond one's ability to understand or make sense of the subject matter or task at hand. The stuff they're teaching in this advanced math class is beyond my ken.
See also: beyond, ken

beyond one's ken

outside the extent of one's knowledge or understanding. Why she married that shiftless drunkard is beyond our ken. His mean attitude to others is quite beyond my ken.
See also: beyond, ken
References in classic literature ?
After a season of darkness and struggling, light broke and relief fell: my cramped existence all at once spread out to a plain without bounds--my powers heard a call from heaven to rise, gather their full strength, spread their wings, and mount beyond ken.
Costello picked him out with a great hand pass across goals but the 2011 All-Ireland winning captain couldn't palm his shot beyond Ken O'Halloran.
It is narrow and parochial to be based in and around London and seldom bother with anything that happens beyond Ken Livingstone land.
But it was as a series of hilarious characters in radio's Beyond Ken and Round The Horne that he most memorably tickled the nation's funny bone.
Our habitat is being restructured on an order of magnitude beyond ken.