Mischievous (adjective) شرارتی، فتنہ انگیز، ضرر رساں

causing or showing a fondness for causing trouble in a playful way.
Example: “mischievous children”
Dissent (noun) اختلاف رائے ہونا، مخالف ہونا

the holding or expression of opinions at variance with those commonly or officially held.
Example: “there was no dissent from this view”