potent
/ˈpəʊt(ə)nt/adjective
Very powerful or strong in its effect.
Example sentences
- “This painkiller is potent, so take only one tablet.”
- “Social media has become a potent tool for organizing protests.”
- “The video was a potent reminder of the dangers of drunk driving.”
Common pairings are a potent drug, a potent weapon, and a potent symbol. The opposite, 'impotent', means powerless.