There are many synonyms for the word "intoxicative", which means to cause intoxication or drunkenness. Some of the most common synonyms include intoxicating, inebriating, drugging, mind-altering, and narcotic. These words are often used interchangeably to describe the effects of drugs or alcohol on the human body. Other synonyms for "intoxicative" include stupefying, disorienting, and hallucinogenic. These words describe the more extreme effects of drugs that can lead to confusion or altered perception of reality. As with any drug-related term, it is important to use these synonyms with caution and to understand their potential consequences, both positive and negative.