1. relating to or capable of combustion; tending to catch fire or burn easily
Usage: technical/scientific; often used in chemistry and engineering contexts
2. characterized by or prone to heated argument or conflict; explosive in temperament
Usage: figurative

Examples

• The factory stores combustive materials in a specially designed warehouse.
• Hydrogen is a highly combustive gas that must be handled with extreme care.
• The political situation became increasingly combustive as tensions rose between the two groups.
• Combustive reactions release significant amounts of heat and light.
• His combustive personality often led to arguments with colleagues.
• The mixture of chemicals proved to be combustive when exposed to heat.