A half-hearted bully is someone who lacks true conviction in their aggressive behavior. There are various synonyms for this term that can be used to describe such a person. Such synonyms can include "wishy-washy bully," "hollow bully," or "weak bully." A half-hearted bully may also be described as a "timid bully," "tepid bully," or "feeble bully." Such words emphasize the lack of strength or power that this type of bully possesses. While these synonyms may vary in intensity, they all describe an individual who engages in bullying behavior but lacks the necessary conviction to carry it out in a truly forceful manner.