effusiveness

/ɪˈfjuːsɪvnəs/
noun
  1. The quality of expressing feelings in an excessive, emotional, or enthusiastic way.
    • Her effusiveness sometimes made others uncomfortable.
    • I appreciate your effusiveness, but a simple 'thank you' is enough.
    • The effusiveness of his apology seemed genuine but over the top.
Antonyms
What does "effusiveness" mean? | whatsthatwordmean | whatsthatwordmean