BRIGHTNESS Antonyms There are 6 antonyms of the word brightness. (opposite meanings)Did you mean?Definition of BRIGHTNESSSynonyms of BRIGHTNESSAlso try opposite words for..brightbrightenBest Opposite Words For BRIGHTNESSTop 20Top 10 Top 20 (Default)Top 50 Top 100 All All (Default)WordsPhrases All All (Default)Verb Noun Adjective Adverb RankWordSave?Synonyms..UsageType1dullnessnounn2darknessnounn3dimnessnounn4gloomnounn5obscuritynounn6shadowverb, nounv, n Alternatives for DULLNESS Words (2)bluntnessobtusenessOpposite words for dullness Alternatives for DARKNESS Words (21)shadowblackblacknessblindnesscloudinessdimdimnessduskgloommidnightmurknightobscurityopacitypitchshadetenebrositydarkduskinessswarthinesswickednessOpposite words for darkness Alternatives for DIMNESS Words (3)duskinessfaintnesssubduednessOpposite words for dimness Alternatives for GLOOM Words (4)gloominesssombernesssombrenessglumnessOpposite words for gloom Alternatives for OBSCURITY Words (23)abstrusenessambiguitycloudinessdarknessenigmaequivocationhazinessimpenetrabilityincomprehensibilityinscrutabilitymurkinessmystificationopacityperplexitysecrecyuncertaintyunintelligibilityvaguenessesotericismmysteriousnessobscurenessreconditenessunknownnessOpposite words for obscurity Alternatives for SHADOW Words (22)umbradarknessshadedimnessduskgloomobscuritypenumbrashadinessapparitiondarkdwarffantasmovershadowphantasmphantasmaphantomshadowertailtincturetracevestigePhrases (1)shade offOpposite words for shadow