1. The chair was old and unstable, causing it to wobble whenever someone sat on it.
2. The political situation in the country was becoming increasingly unstable, leading to fears of civil unrest.
3. The chemical reaction was highly unstable, requiring careful handling in the laboratory.
4. The economy was showing signs of becoming more unstable, with fluctuating prices and uncertain market conditions.
5. The weather forecast predicted strong winds and heavy rain, making conditions unstable for outdoor activities.
6. The relationship between the two parties was unstable, with frequent arguments and disagreements.
7. The patient's condition was unstable, requiring constant monitoring by medical staff.
8. The building was old and unstable, posing a safety risk to anyone inside.
9. The athlete's performance was unpredictable and unstable, with moments of brilliance followed by sudden setbacks.
10. The foundation of the house was weak and unstable, causing structural problems that needed to be addressed.