explosive

"Explosive" most literally describes something that can cause a sudden and violent expansion, producing a large amount of energy in the form of heat, light, sound, and pressure. This is what we think of with dynamite, gunpowder, or any device designed to detonate, such as "explosive ordnance." "The demolition team used explosives to bring down the old building."

However, "explosive" has expanded beyond just physical detonations. It's frequently used figuratively to describe anything that's intensely powerful, rapidly increasing, or likely to cause a dramatic reaction.

You might hear about an "explosive increase" in sales, meaning a huge and sudden jump. A writer might describe a character as having an "explosive temper," indicating they are quick to anger. An "explosive argument" isn't literally blowing up, but it's filled with intense emotion and likely to escalate quickly.

The word carries a sense of danger or unpredictability, even when used figuratively. It suggests something is unstable and on the verge of releasing pent-up energy. So whether you're talking about fireworks lighting up the sky or a heated debate, "explosive" always implies power, speed, and the potential for dramatic impact.