- incubus - a male demon believed to lie on sleeping persons and to have sexual intercourse with sleeping women
--1 is a kind of devil, fiend, demon, daemon, daimon
- nightmare, incubus - a situation resembling a terrifying dream
--2 is a kind of situation
- incubus - someone who depresses or worries others
--3 is a kind of unpleasant person, disagreeable person
- nightmare, incubus - a situation resembling a terrifying dream