black box
词形变化：
形容词: blackish | 副词: blackly | 名词: blackness | 动词过去式: blacked | 动词过去分词: blacked | 动词现在分词: blacking | 动词第三人称单数: blacks |
同义词：
blackness | inglorious | black-market | Shirley Temple | lightlessness | mordant | calamitous | melanise | smuggled | blacken | blackamoor | contraband | bootleg | disastrous | smutty | ignominious | inkiness | nigrify | blackened | pitch-dark | fateful | melanize | fatal | vague | grey | fraught with | forbidding | sinister | threatening | pregnant | infelicitous | portentous | foreboding | menacing | ominous | inauspicious | dire | unpropitious | imminent | dim | impending | with | minacious | fraught | unpromising | looming | fell | harmful | hanging | ill-omened | pernicious | baleful | over | direful | nocuous | dreadful | crepuscular | disgraceful | umbrageous | dusky | shady | obscure | cloudy | dull | caliginous | misty | overclouded | indistinct | unilluminated | shadowy | opaque | Cimmerian | moonless | fuliginous | tenebrous | lightless | blurred | night | unlighted | nocturnal | unclean | overcast | sooty | smoky | lowering | besmirched | shameful | smudgy | smeared | sloppy | grimy | dirty | sullied | smirched | grubby | begrimed | dingy | opprobrious | filthy | detestable | despicable | contemptible | insidious | perfidious | loathsome | scoundrelly | knavish | treacherous | abhorrent | unprincipled | reprehensible | traitorous | degenerate | felonious | hateful | unpardonable | scurvy | criminal | depraved | unscrupulous | wrong | corrupt | pitch-black | bleak | ebon | arrant | villainous | nigrescent | coal-black | heinous | jetty | pitchy | ignoble | base | jet | evil | swart | inky | odious | ebony | atramentous | iniquitous | blackish | raven | nefarious | carbon | low | melancholy | Negro | accursed | satanic | funereal | maleficent | flagitious | ghastly | tar | mournful | sable | unspeakable | Negroid | dark-skinned | sullen | wicked | gruesome | swarthy | dour | ink | dreary | vile | gloomy | diabolical | abominable | dismal | somber | outrageous | forlorn | desolate | dispirited | downcast | vicious | soot | sinful | morose | cheerless | black-hearted | malevolent | devilish | depressed | Stygian | execrable | pessimistic | lugubrious | foul | hideous | horrible | dejected | disconsolate | despondent | bad | atrocious | Afro-American | African | coloured | grisly | demonic | fiendish | infernal | damnable | grim | dark | afflictive | shade | smoke | darken | depressing |
反义词：