Definitions

1. verb

to intentionally damage or destroy property, especially public or historic monuments, or to mark or deface property with graffiti or other forms of vandalism

“The protesters vandalised the city hall during the riot.”

2. verb

to spoil or ruin something, especially by careless or thoughtless action

“She vandalised her chances of getting the job by lying on her application.”

3. noun

an instance of intentionally damaging or destroying property, especially public or historic monuments

“The vandalism of the ancient temple was a national tragedy.”