Disable dictionary results in Spotlight?

TinkerTool also allows you to change this preference via a GUI (rather than a Terminal command). It's under Applications > Spotlight:

Note that you will have to log out and back in for the changes to take effect.


  • Open /Applications/Utilities/Terminal
  • Enter defaults write com.apple.spotlight DictionaryLookupEnabled NO
  • Log out and Log back in

Please note that on some versions of OS X, Spotlight is part of the SystemUIServer process, and therefore cannot be killed using killall Spotlight.