Bright spark is an idiomatic expression used to describe someone who is intelligent, innovative, or quick-witted. There are many different synonyms for this phrase that can be used to describe a person who possesses such exceptional qualities. Some examples of synonyms for bright spark might include terms like brainiac, genius, prodigy, whiz kid, go-getter, or trailblazer. These words all describe an individual who is highly intelligent, skilled, and motivated to succeed in their endeavors. Whether it's in the arts, sciences, or business, a bright spark is someone who stands out from the crowd and shines with their natural talent and drive.