caliginous
adjective
ca·lig·i·nous kə-ˈli-jə-nəs 
: misty, dark
a caliginous atmosphere
Synonyms
- black
- dark
- darkened
- darkish
- darkling
- darksome
- dim
- dimmed
- dusk
- dusky
- gloomy
- lightless
- murky
- obscure
- obscured
- pitch-black
- pitch-dark
- pitchy
- rayless
- somber
- sombre
- stygian
- tenebrific
- tenebrous
- unlit
See all Synonyms & Antonyms 
Word History
Etymology
Middle French or Latin; Middle French caligineux, from Latin caliginosus, from caligin-, caligo darkness
First Known Use
circa 1550, in the meaning defined above
caliginous
adjective
as in darkened
being without light or without much light without a flashlight, there was no way to tell what kind of creatures lurked in the caliginous cave Synonyms & Similar Words
Relevance
- darkened
- dark
- murky
- stygian
- darkling
- dusky
- tenebrous
- rayless
- darkish
- lightless
- dim
- obscure
- black
- somber
- gloomy
- darksome
- unlit
- obscured
- sombre
- dimmed
- dusk
- twilit
- pitch-dark
- pitchy
- pitch-black
- crepuscular
- tenebrific
- fuliginous
- shadowy
- moonless
- misty
- starless
- gray
- sunless
- leaden
- pale
- shady
- clouded
- beclouded
- lackluster
- dulled
- foggy
- dull
- shadowlike
- cloudy
- grey
- smoggy
- befogged
- soupy
Antonyms & Near Antonyms
- luminous
- light
- illuminated
- lucent
- brilliant
- lighted
- bright
- lit
- incandescent
- effulgent
- sparkling
- lambent
- shining
- lucid
- lightsome
- resplendent
- glowing
- illumined
- beamy
- radiant
- glaring
- alight
- brightened
- lustrous
- glossy
- shiny
- aglitter
- beaming
- agleam
- spotlit
- moonlit
- moony
- sunlit
- relucent
- ablaze
- ultrabright
- starlit
- highlighted
- spotlighted
- floodlit
- floodlighted