The police are trying to defuse a very 'explosive' [='volatile'] situation.
the danger of working with 'high explosives' [=very powerful explosives]
The region has experienced 'explosive' [='rapid'] population growth.
(..) What's going on? Nothing that concerns you spacemen, just us toys. I'd better take a look anyway. Why is that soldier strapped to an explosive device? That's why, Sid. Sure is a hairy fellow. No, no, that's Scud, you idiot. That is Sid. -You mean that happy child? (..)1995 Toy Story