Dictionary definition is "to torment, worry". It is very difficult to define because it can take many forms and directed at an individual or groups. It is the effect that it has on a person that's important, not the intention of the harasser. Harrassment is unwelcome or unwanted and can be stressful and intimidating for the victim. Bullying is also a form of harassment.

is receiving less favourable treatment for doing a protected act, such as:

• making a complaint of discrimination or bringing proceedings under the Act;
• giving evidence in proceedings under the Act; and supporting or planning to support someone else's complaint under the Act.