no-nonsense

adjective

1. not tolerating anything frivolous or trifling; firm and businesslike: a no-nonsense approach to money matters; a no-nonsense teacher with well-behaved classes.
2. economical or utilitarian; practical: a no-nonsense car that gets excellent gas mileage.
3. plain and simple; not fancy, complicated, or elegant: no-nonsense recipes for easy preparation.

adjective

1. sensible, practical, straightforward; without nonsense of any kinda businesslike no-nonsense approach; a severe no-nonsense look

adj.“not tolerating foolishness, businesslike,” 1928,” from phrase to stand no nonsense, which is attested from 1821, originally in sporting slang.