- of, relating to, exhibiting, or caused by radioactivity: A pressing issue in post-Soviet Russia is safe long-term storage of radioactive waste, from both military and civilian applications.
- relating to or being a person, topic, or matter that is likely to provoke intense negative reactions or disagreement: The option of raising taxes to fund these expenditures is a politically radioactive approach that a majority of state policymakers have avoided.
- exhibiting, using, or concerned with radioactivity
