As a Noun: 1. The condition of being willing to consider new ideas and other people's opinions. English = open-mindedness, broad-mindedness. 2. The acceptance of behaviour and opinions which are different from your own. English = tolerance. As a Verb or Adjective: 1. To be willing to consider new ideas and other people's opinions. English = (be) open-minded, (be) broad-minded. 2. To accept behaviour and opinions which are different from your own. English = (be) tolerant, (be) liberal.