A nightmare, also known as a bad dream, [1] is an unpleasant dream that can cause a strong emotional response from the mind, typically fear but also despair, anxiety, disgust or sadness. The dream may …

nightmare, disturbing dream that provokes a strong negative emotional reaction. Nightmares differ from other dreams in that they typically cause the sleeper to awaken because of emotional distress. An …

Because it was believed to come in the night, it later became known in Middle English as a nightmare. It was not until the 16th century that the word nightmare came to mean "a frightening dream."

NIGHTMARE definition: a terrifying dream in which the dreamer experiences feelings of helplessness, extreme anxiety, sorrow, etc. See examples of nightmare used in a sentence.

NIGHTMARE meaning: 1. a very upsetting or frightening dream: 2. an extremely unpleasant event or experience or…. Learn more.

May 2, 2024 · It’s normal to occasionally have a nightmare or bad dream, but for some people, they recur frequently, disrupting sleep and negatively impacting their waking life as well.

Definition of nightmare noun from the Oxford Advanced Learner's Dictionary. a dream that is very frightening or unpleasant. He still has nightmares about the accident. She has a recurring nightmare …

night•mare (ˈnaɪtˌmɛər) n. 1. a terrifying dream producing feelings of extreme fear and anxiety. 2. a condition, thought, or experience suggestive of a nightmare. 3. (formerly) a monster or evil spirit …

Jun 5, 2021 · A nightmare is a disturbing dream associated with negative feelings, such as anxiety or fear that awakens you. Nightmares are common in children but can happen at any age.

Apr 30, 2025 · Nightmares are vividly realistic, disturbing dreams that rattle you awake from a deep sleep. They often set your heart pounding from fear. Nightmares tend to occur most often during …