Synonyms: soft drug
Definition: a drug of abuse that is considered relatively mild and not likely to cause addiction
Similar words: drug of abuse, street drug
Definition: a drug that is taken for nonmedicinal reasons (usually for mind-altering effects); drug abuse can lead to physical and mental damage and (with some substances) dependence and addiction
Similar words: narcotic
Definition: a drug that produces numbness or stupor; often taken for pleasure or to reduce pain; extensive use can lead to addiction