Definition of wackiness in US English:

wackiness

(also whackiness)

noun

informal
  • See wacky

    • ‘If the title ‘Business Bizarre’ suggests an element of whackiness, it is missing in the presentation.’
    • ‘Often, isn't the wackiness in New Zealand ‘comedy’ a self-conscious pursuit of weirdness, because we're not naturally funny?’
    • ‘South African cricket has had a certain destructive and counterproductive whackiness about it for a couple of years now, and it is clearly getting out of hand.’
    • ‘David Deans has a number of perceptive insights about the wackiness of mobile messaging players.’
    • ‘Spinning arms, monocles, bow-ties, frog-suits and whackiness - what is TV doing to science?’

Pronunciation

wackiness

/ˈwakēnəs//ˈwækinəs/