verb. become unstable.
verb. make unstable.
Example sentences of the word destabilise
1. Verb, base form
Any seeping water will destabilise the well.
2. Verb, non-3rd person singular present
Paint strippers destabilise the paint, making scraping the layers off easier.
3. Noun, singular or mass
Buildings can function without it on a day-to-day basis, but should an earthquake destabilise a building it is the cross-bracing that will keep it standing.