Compendious is an adjective that means containing all the essential facts, but concise.
The Latin word compendiosus (com PEN dee oh soos) means ‘advantage, brief.’ From there our word of the day was born, eventually evolving into a word for ‘containing all the essential facts, but concise.’
As a young lawyer, I could be a little verbose. Let’s just say my briefs weren’t very compendious.