1 adjective
1 able or likely to explode: At high temperatures this gas is explosive. | explosive device (=a bomb)
2 an explosive situation is violent or dangerous: the explosive atmosphere of the inner cities
3 increasing suddenly or rapidly in amount or number: the computer industry's explosive growth
4 tending to show angry violent feelings suddenly: an explosive temperament
5 having great force or power, usually as the result of an explosion: The bullet hit its target with explosive force.
6 an explosive sound is sudden and loud
— explosively adverb — explosiveness noun (U) 2 noun (C) a substance that can cause an explosion: Semtex, the explosive used in the Lockerbie airplane disaster —see also: high explosive, plastic explosive

Longman dictionary of contemporary English. 2004.