Skip to definition.
Get the FREE one-click dictionary software for Windows or the iPhone/iPad and Android apps


Noun: instantaneousness  ,in-stun'tey-nee-us-nus
  1. The quickness of action or occurrence
    "the instantaneousness of their response";
    - immediacy, immediateness, instancy

Type of: celerity [archaic], quickness, rapidity, rapidness, speediness