mischievousness

mischievous +‎ -ness

• IPA^(key): /ˈmɪst͡ʃɪvəsnəs/
• Hyphenation: mis‧chie‧vous‧ness

mischievousness (countable and uncountable, plural mischievousnesses)

1. The characteristic of being mischievous; the tendency to make mischief.
   • 1946 November and December, “Notes and News: An American Mountain Railway”, in Railway Magazine, page 382:

     Up to the recent accident, which is attributed to the mischievousness of someone in releasing safety devices on the wagon, the railway has enjoyed an accident-free record.