25 entries under nightmare topic. ×

6
delusion(noun, vision, illusion, hallucination)
4
dream(noun, vision, illusion, delusion, hallucination)
2
hallucination(noun, vision, illusion, delusion)
2
fantasy(noun, vision, illusion, delusion, hallucination)
2
image(noun, vision, illusion, delusion, hallucination)
2
apparition(noun, vision, illusion, delusion, hallucination)
2
daydream(noun, vision, illusion, delusion, hallucination)
2
imagination(noun, vision, illusion, delusion, hallucination)
2
mirage(noun, vision, illusion, delusion, hallucination)
2
fancy(noun, vision, illusion, delusion, hallucination)
2
mental picture(noun, expression, vision, illusion, delusion)
2
unreality(noun, vision, illusion, delusion, hallucination)
2
vision(noun, illusion, delusion, hallucination)
1
desire(noun, vision, illusion, delusion, hallucination)
1
dreaming(noun, vision, illusion, delusion, hallucination)
1
figment(noun, vision, illusion, delusion, hallucination)
1
illusion(noun, vision, delusion, hallucination)
1
irreality(noun, vision, illusion, delusion, hallucination)
1
phantasm(noun, vision, illusion, delusion, hallucination)
1
phantasma(noun, vision, illusion, delusion, hallucination)
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APASmart Define. (2016). world thesaurus. Retrieved September 26, 2026, from https://smartdefine.org/world/thesaurus/antonyms
ChicagoSmart Define. 2016. "world thesaurus" https://smartdefine.org/world/thesaurus/antonyms (accessed September 26, 2026).
HarvardSmart Define 2016, world thesaurus, Smart Define, viewed 26 September, 2026, <https://smartdefine.org/world/thesaurus/antonyms>.
MLASmart Define. "world thesaurus" 26 February 2016. Web. 26 September 2026. <https://smartdefine.org/world/thesaurus/antonyms>