Adverb
in a detrimental manner
Source: WordNetDallek 1998, p. 240. Johnson decided against retaliatory action at the time after consultation with the Joint Chiefs and also after public pollster Lou Harris confirmed that his decision would not detrimentally affect him at the polls. Source: Internet
He argued that the war would detrimentally lead to the annexation of all of Mexico, which would bring Mexicans into the country, whom he considered deficient in moral and intellectual terms. Source: Internet