Definition of "no-nonsense"

no-nonsense

adjective
comparative more no-nonsense, superlative most no-nonsense
1. Practical, not tolerating from others or concerning oneself with anything silly or unimportant.
  Quotations
  We can now better understand the vision of three local authorities to hire no-nonsense former Eastern Region General Manager Gerry Fiennes to take on his old British Rail adversaries - and win.
  2020 November 18, Howard Johnston, “The missing 'Lincs' and the sole survivor”, in Rail, page 58
2. No-frills.
  Quotations
  This grilled cheeze [sic] sandwich makes for a rich but no-nonsense brunch […]
  2011, Vincent J. Guihan, New American Vegan, page 204