Definition of bad dream
- Scary movies always give me bad dreams.
: failing to reach an acceptable standard : poor
: not fresh : spoiled
: something that is bad
: an evil or unhappy state
: a series of thoughts, images, or emotions occurring during sleep — compare rem sleep
: an experience of waking life having the characteristics of a dream: such as
: a visionary (see 1visionary 2a) creation of the imagination : daydream
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