Stimulant
Stimulant noun - Something that arouses action or activity.
Upper is a synonym for stimulant in pep pill topic. In some cases you can use "Upper" instead a noun "Stimulant", when it comes to topics like pick-me-up, substance that invigorates. informal substitute
Upper
Upper noun - A central nervous system stimulant that increases energy and decreases appetite; used to treat narcolepsy and some forms of depression.
Mutual synonyms
Cite this Source
Upper and Stimulant. (2016). Retrieved 2026, August 16, from https://thesaurus.plus/related/stimulant/upper
Stimulant & Upper. N.p., 2016. Web. 16 Aug. 2026. <https://thesaurus.plus/related/stimulant/upper>.
Upper or Stimulant. 2016. Accessed August 16, 2026. https://thesaurus.plus/related/stimulant/upper.
Google Ngram Viewer shows how "stimulant" and "upper" have occurred on timeline