(v.) In a foul manner; filthily; nastily; shamefully; unfairly; dishonorably.

abjectly abominably arrantly awfully barbarously basely bec et ongles bestially brutally brutishly contemptibly cruelly despicably detestably devilishly diabolically disgustingly dreadful dreadfully egregiously execrably ferally ferociously fiendishly fiercely flagrantly foully fulsomely grossly heinously horribly horridly infamously inhumanely inhumanly loathsomely meanly mercilessly miserably monstrously nastily nauseatingly nefariously notoriously obnoxiously odiously offensively outrageously pettily pitilessly poorly ruthlessly savagely scandalously scurvily shabbily shamefully sharkishly shockingly shoddily slaveringly something fierce sordidly terribly tooth and nail truculently unhumanly viciously vilely wolfishly wretchedly