adj. 25B6; adjective
an infamous mass murderer : NOTORIOUS, disreputable; legendary, fabled.
infamous misconduct : ABOMINABLE, outrageous, shocking, shameful, disgraceful, dishonourable, discreditable, unworthy; monstrous, atrocious, appalling, dreadful, terrible, heinous, egregious, detestable, loathsome, hateful, vile, unspeakable, unforgivable, iniquitous, scandalous; informal dirty, filthy, low-down; Brit. informal beastly.
reputable, honourable.