Learner's definition of VIVID
[more vivid; most vivid]
1
of a picture, memory, etc. : seeming like real life because it is very clear, bright, or detailed（图片、记忆等）清晰的，生动的，逼真的 -
He gave a vivid description of the scene.他生动地描述了那个场面。
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The book includes many vivid illustrations.这本书里有许多生动的插图。
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The dream was very vivid.这场梦非常清晰逼真。
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She could remember the dream in vivid detail.她能清楚地记得梦中的细节。
◊ If you have a vivid imagination, you can imagine things that are not real very clearly and easily.活跃的想象力
2
: very bright in color（颜色）鲜艳的，鲜明的
— vividness
noun [noncount]