Similar words: mischievous, nervousness, mischief, callousness, arduousness, viciousness, seriousness, imperiousness. Meaning: ['mɪstʃɪvəsnɪs] 
n. 1. an attribute of mischievous children 2. the trait of behaving like an imp 3. reckless or malicious behavior that causes discomfort or annoyance in others.
n. 1. an attribute of mischievous children 2. the trait of behaving like an imp 3. reckless or malicious behavior that causes discomfort or annoyance in others. 
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1. "Urchin", with its connotation of mischievousness, may not be a particularly apt word.
2. He chuckleed at the child's mischievousness.
3. All mankind has some mischievousness ingrained in their being.
4. Very neat in appearance, he had that happy-to-be-alive attitude that made even his occasional mischievousness delightful.
5. And she looked at me with slight panic and absolute mischievousness and just started laughing.
6. He had a wicked glint in his eye, ie suggesting mischievousness.
7. But all these are decided by the evil spirit juice might, the cepheus decree and the young and clever compels a gram mischievousness.
8. One of the hardest things was the glasses and their refraction – to get the right personality that we were looking for, a mix of misguided craziness and mischievousness .
More similar words: mischievous, nervousness, mischief, callousness, arduousness, viciousness, seriousness, imperiousness, cautiousness, righteousness, consciousness, outrageousness, impetuousness, gregariousness, fastidiousness, licentiousness, meticulousness, capriciousness, pretentiousness, presumptuousness, disingenuousness, conscientiousness, grievous, stream of consciousness, devoutness, achieve, achiever, achievable, overachieve, achievement.