Adverb
in a dishonorable manner or to a dishonorable degree
with dishonor
in a dishonorable manner
Source: WordNetTruly, to tell lies is not honorable; But when the truth entails tremendous ruin, To speak dishonorably is pardonable. Sophocles
his grades were disgracefully low Source: Internet
he was dishonorably discharged Source: Internet
he acted dishonorably Source: Internet
He couldn’t deal with the discipline there and was ultimately dishonorably discharged. Source: Internet
He had just moved back to his hometown after being dishonorably discharged from his position in the imperial service and wanted a place where he could meditate on how he had failed in his career. Source: Internet