2
black
2
gray
2
unfathomable
2
unintelligible
2
unsound
1
abstruse(adjective, difficult)
1
arcane
1
balmy
1
brainsick
1
bughouse
1
certifiable
1
confusing
1
crackbrained
1
crackpot
1
cranky
1
crazed
1
cryptic
1
cuckoo
1
daffy
1
darkened
10 years ago|6.2k views|share |citing 
APASmart Define. (2016). lucid thesaurus. Retrieved September 27, 2026, from https://smartdefine.org/lucid/thesaurus/antonyms
ChicagoSmart Define. 2016. "lucid thesaurus" https://smartdefine.org/lucid/thesaurus/antonyms (accessed September 27, 2026).
HarvardSmart Define 2016, lucid thesaurus, Smart Define, viewed 27 September, 2026, <https://smartdefine.org/lucid/thesaurus/antonyms>.
MLASmart Define. "lucid thesaurus" 31 March 2016. Web. 27 September 2026. <https://smartdefine.org/lucid/thesaurus/antonyms>