IPA: /ˌdɛstəbaɪlɪˈzeɪʃən/
KK: /dɛstəˌbeɪləˈzeɪʃən/
The act of making something unstable or less secure.
The destabilization of the government led to widespread protests.
Destabilization is formed from "de-" (meaning down or away) and "stabilizare" (from Latin, meaning to make stable). The word refers to the act of making something less stable or causing it to lose stability.
Think of 'making something less stable' — 'de-' means down or away, and 'stabilizare' means to make stable.