As spawned from the DefinitionOfOrthogonal,
- Urgency vs. Importance. See FourQuadrants for application of this.
- TopDownDesign + BottomUpProgramming vs. DepthFirst + BreadthFirst. See CloseTheLoop.
- Open + Closed vs. Active + Inactive, when discussing minds. See MyMindIsMadeUp.
See also: WordsThatArentSynonyms, ComplEmentarity.