Breadcrumb Home > Thesaurus > A Synonyms of amphetamine Find synonyms for: Noun 1. amphetamine, pep pill, upper, speed, stimulant, stimulant drug, excitant, drug of abuse, street drug usage: a central nervous system stimulant that increases energy and decreases appetite; used to treat narcolepsy and some forms of depression WordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved.Definition and meaning of amphetamine (Dictionary) TrendingHere are the facts and trivia that people are buzzing about. Chinese New Year History, Meaning, and Celebrations Current Events This Week: February 2024 Valentine's Day Valentine's Day History Mardi Gras 30 "Charlie and the Chocolate Factory" Quotes ✖ Related Content Daily Word Quiz: insipid Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language