Learner's definition of CONCISE
[more concise; most concise]
using few words
not including extra or unnecessary information
is the most general of these words and suggests a lack of extra or unnecessary information.
suggests that you are using very few words in a way that may seem rude.
suggests that the words you use are clear and helpful in explaining something.
suggests the use of words that may seem rude, indifferent, or mysterious.
suggests the skillful or meaningful use of a small number of words.