Definitions for no-nonsense
Random House Webster's College Dictionary
Category: Common Vocabulary
Origin of no-nonsense:
not tolerating irrelevancies
"the no-nonsense tones of a stern parent"
Kernerman English Learner's Dictionary
straightforward and without anything extra or unnecessary
a no-nonsense guide to government rules and regulations; a no-nonsense approach to turning your life around
Practical, not concerning oneself with anything silly or unimportant.
Her no-nonsense way of resolving issues impressed her superiors.