INCOMPOSSIBLE, adj. Unable to exist if something else exists. Two
things are incompossible when the world of being has scope enough for
one of them, but not enough for both -- as Walt Whitman's poetry and
God's mercy to man. Incompossibility, it will be seen, is only
incompatibility let loose. Instead of such low language as "Go heel
yourself -- I mean to kill you on sight," the words, "Sir, we are
incompossible," would convey and equally significant intimation and in
stately courtesy are altogether superior.