Definition of "execrable"

But is an enemy so execrable, that, though in captivity, his wishes and comforts are to be disregarded and even crossed? I think not. It is for the benefit of mankind to mitigate the horrors of war as much as possible.

1779, Jefferson, letter to Patrick Henry written on March 27

The arcanely evil words of that despicable, loathsome, suppressed, vile, pululating [sic], odious, nictating, repellent, repugnant, noxious, abhorrent, abominable, tory, execrable, nauseous work, Ye Boke of Guts, moved as if on a conveyor belt before his eyes.

2001 June 1, David Langford with John Grant, Guts: A Comedy of Manners, Wildside Press, page 72