Definition of Nightmare

1. Noun. A situation resembling a terrifying dream.

Exact synonyms: Incubus
Generic synonyms: Situation

2. Noun. A terrifying or deeply upsetting dream.
Generic synonyms: Dream, Dreaming

Definition of Nightmare

1. n. A fiend or incubus formerly supposed to cause trouble in sleep.

Definition of Nightmare

1. Noun. (rare) A female demon or monster, thought to plague people while they slept and cause a feeling of suffocation and terror during sleep. ¹

2. Noun. A very bad or frightening dream. ¹

3. Noun. (figuratively) Any bad, miserable, difficult or terrifying situation or experience that arouses anxiety, terror, agony or great displeasure. ¹

¹ Source: wiktionary.com

Definition of Nightmare

1. [n -S]

Medical Definition of Nightmare

1. 1. A fiend or incubus formerly supposed to cause trouble in sleep. 2. A condition in sleep usually caused by improper eating or by digestive or nervous troubles, and characterised by a sense of extreme uneasiness or discomfort (as of weight on the chest or stomach, impossibility of motion or speech, etc), or by frightful or oppressive dreams, from which one wakes after extreme anxiety, in a troubled state of mind; incubus. 3. Hence, any overwhelming, oppressive, or stupefying influence. Origin: Night + mare incubus. See Mare incubus. Source: Websters Dictionary (01 Mar 1998)

Lexicographical Neighbors of Nightmare

nightless
nightlies
nightlife
nightlifer
nightlifers
nightlifes
nightlight
nightlight bulb
nightlight bulbs
nightlights
nightlike
nightlives
nightlong
nightly
nightman
nightmare (current term)
nightmarelike
nightmares
nightmarish
nightmarishly
nightmarishness
nightmen
nightrider
nights
nights out
nightscape
nightscapes
nightscope
nightscopes
nightshade

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