The term "addictive narcotic" refers to drugs that have the potential for abuse and addiction. Synonyms for this phrase might include "habit-forming substances" or "compulsive drugs". Other terms that could be used to describe addictive narcotics might include "dependency-inducing substances" or "substances of abuse". Ultimately, any drug that has the potential to create a psychological or physical dependence might be classified as an addictive narcotic. Some common examples of addictive narcotics include opioids, benzodiazepines, and stimulants. It's important to remember that these drugs can be incredibly dangerous and should only be used under the guidance of a qualified medical professional.