1
obscured
1
shady
1
tenebrous
1
unlit
0
abstruse
0
achromatic
0
black and white
0
black hole
0
black out
0
blackened
0
bleak
0
calamitous
0
caliginous
0
cheerless
0
dense
0
depressing
0
difficult
0
dingy
0
dismal
0
downcast
11 years ago|1.2k views|share |citing 
APASmart Define. (2015). effulgent thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/effulgent/thesaurus/antonyms
ChicagoSmart Define. 2015. "effulgent thesaurus" https://smartdefine.org/effulgent/thesaurus/antonyms (accessed September 25, 2026).
HarvardSmart Define 2015, effulgent thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/effulgent/thesaurus/antonyms>.
MLASmart Define. "effulgent thesaurus" 10 April 2015. Web. 25 September 2026. <https://smartdefine.org/effulgent/thesaurus/antonyms>