ominous - Giving the impression that something bad, unpleasant or threatening is going to happen.

incendiary - Likely to cause fire, violence, strong feelings, or anger.

addictive - The habit-forming quality of a substance or activity that causes someone to become dependent on using it or doing it.

tinderbox - A volatile or tense environment, emotionally or politically charged, likely to erupt in violence or conflict.

heresy - An opinion or belief that contradicts established norms or accepted standards.

brinkmanship - The art or practice of pursuing a dangerous policy to the limits of safety before stopping, typically in politics

tremor - A slight shaking movement, such as one caused by an earthquake or instability; also a subtle or faint sign of emotion, such as fear or excitement in the voice or body.

deluge - A severe flood or overwhelming rush of water.

lethal - Capable of causing death; deadly or fatal.

volatile - An unstable situation that is likely to get worse quickly

detonate - To cause something to explode suddenly and violently.

fester - For negative feelings to get worse because they are not being dealt with