Definition of wholeheartedness in US English:

wholeheartedness

noun

  • See wholehearted

    • ‘The cult of the saints began with the earliest martyrs, who had certainly proved their wholeheartedness.’
    • ‘He described Seamus O'Toole as a farmer's son who was well known for the wholeheartedness and sincerity he brought to everything he did.’
    • ‘She held the offices of Secretary, Treasurer, Produce Promoter and P.R.O. - all of which had been performed with wholeheartedness and to the best of her ability.’
    • ‘This was possible only because of the support and wholeheartedness shown by the state government.’
    • ‘Dave's experiences offer an example of a student teacher's reflective struggle with wholeheartedness, openmindedness, and responsibility.’

Pronunciation

wholeheartedness

/ˌhoʊlˈhɑrdədnəs//ˌhōlˈhärdədnəs/