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unstable
01
displaying unpredictable and sudden changes in emotions and behavior
02
likely to move, fall, or change
03
prone to sudden change or alteration
04
(of a substance) reacting with other chemical substances very easily
05
affording no ease or reassurance
06
suffering from severe mental illness
Example
Sudden changes in the mercury barometer alerted sailors to unstable weather conditions at sea.
Due to structural issues, they had to take down the unstable tower.
The unstable ladder was unfit for reaching high shelves safely.
In the forest, dead trees can become unstable and topple during a storm.
The snow on the mountain slope became unstable, causing it to surge downward.
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