infectiously

/ɪnˈfɛkʃəsli/
adverb
  1. In a way that spreads quickly and easily to others, especially regarding emotions, laughter, or enthusiasm.
    • She laughed infectiously, making everyone in the room smile.
    • The children's joy spread infectiously through the playground.
    • His enthusiasm for the project was infectiously motivating to the whole team.
  2. In a manner that can be transmitted from one person to another, as with a disease.
    • The bacteria multiplied infectiously in the warm, damp environment.
    • The virus spread infectiously through the crowded market.
    • The disease passed infectiously from host to host.
What does "infectiously" mean? | whatsthatwordmean | whatsthatwordmean