Also, in late Middle English, ''impatient'' could mean "unbearable."  That's more like it, for Claudius's view of Hamlet.  We can safely conclude Hamlet returns the favor.  So, Claudius says Hamlet has "an unbearable mind."  That looks like what psychologists now call projection.

Also, in late Middle English, ''impatient'' could mean "unbearable."  That's more like it, for Claudius's view of Hamlet.  We can safely conclude Hamlet returns the favor.  So, Claudius says Hamlet has "an unbearable mind."  That looks like what psychologists now call projection.

Keep going with the words, even a step further back.  The word ''mind'' comes from Old English 'gemynd' which could mean "memory."  We then get, from the root meanings of both words, ''a mind impatient'' = "a memory unbearable," an unbearable memory.  Shakespeare, with words, was like a Titan returned to earth.  Look at that, it's no accident in what he wrote.

Keep going with the words, even a step further back.  The word ''mind'' comes from Old English 'gemynd' which could mean "memory."  We then get, from the root meanings of both words, ''a mind impatient'' = "a memory unbearable," an unbearable memory.