Open English Wordnet
Nouns
(n)total darkness, lightlessness, blackness, pitch blackness, blacktotal absence of light“they fumbled around in total darkness”, “in the black of night”
Verbs
Adjectives
(s)black, dark, sinisterstemming from evil characteristics or forces; wicked or dishonorable“black deeds”, “a black lie”, “his black heart has concocted yet another black deed”, “Darth Vader of the dark side”, “a dark purpose”, “dark undercurrents of ethnic hostility”, “the scheme of some sinister intelligence bent on punishing him” (Thomas Hardy)
(s)black, calamitous, disastrous, fatal, fateful(of events) having extremely unfortunate or dire consequences; bringing ruin“the stock market crashed on Black Friday”, “a calamitous defeat”, “the battle was a disastrous end to a disastrous campaign”, “such doctrines, if true, would be absolutely fatal to my theory” (Charles Darwin), “it is fatal to enter any war without the will to win it” (Douglas MacArthur), “a fateful error”
(s)black, pitch-black, pitch-darkextremely dark“a black moonless night”, “through the pitch-black woods”, “it was pitch-dark in the cellar”
(s)bootleg, black, black-market, contraband, smuggleddistributed or sold illicitly“the black economy pays no taxes”
(s)black, disgraceful, ignominious, inglorious, opprobrious, shameful(used of conduct or character) deserving or bringing disgrace or shame“Man … has written one of his blackest records as a destroyer on the oceanic islands” (Rachel Carson), “an ignominious retreat”, “inglorious defeat”, “an opprobrious monument to human greed”, “a shameful display of cowardice”