Definition of effusiveness in US English:

effusiveness

noun

  • See effusive

    • ‘Whenever she came to the office the same effusiveness she so generously gave to me was also shown to my staff.’
    • ‘He is a quietly-spoken individual off the park, not given to effusiveness or hyperbole.’
    • ‘Her natural effusiveness and love of writing - she reads about six books at a time - make her an irresistible bookseller.’
    • ‘The doctor, who was not known for his effusiveness said simply, ‘You won't have any problems,’ and that was it.’
    • ‘She describes her experiences on the film with a sort of breathless effusiveness.’

Pronunciation

effusiveness

/əˈfyo͞ozivnis/