In a manner, or to a degree, that is abhorrent; with abhorrence. Early 19th century.
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1982, Texas Monthly (June 1982, volume 10, number 6, page 168)From a basic belief that dropping a nuclear bomb would be an abhorrently immoral act, the bishop has taken the next step: he has tried to make a case that there is only one right way and one wrong way to avoid nuclear catastrophe.