Synonyms of nefarious in English:

nefarious


See US English definition of nefarious

See UK English definition of nefarious

See Spanish definition of nefando

adjective

1‘the nefarious activities of the bodysnatchers’

SYNONYMS
wicked, evil, sinful, iniquitous, villainous, criminal, heinous, atrocious, appalling, abhorrent, vile, foul, base, abominable, odious, depraved, corrupt, shameful, scandalous, monstrous, fiendish, diabolical, devilish, unholy, ungodly, infernal, satanic, dark, unspeakable, despicable, outrageous, shocking, disgraceful
archaic knavish, dastardly
rare egregious, flagitious
ANTONYMS

good, admirable