- 1firmly fixed; not likely to move, change, or fail synonym steady stable prices a stable relationship This ladder doesn't seem very stable. The patient's condition is stable (= it is not getting worse). The situation in the country has remained relatively stable for a few months now.
- 2(of a person) calm and reasonable; not easily upset synonym balanced Mentally, she is not very stable.
- 3(technology) (of a substance) staying in the same chemical or atomic state chemically stable an element forming stable compounds opposite unstable
- NAmE//ˈsteɪbli//adverb Word Familystable adjective (≠unstable)stability noun (≠instability)stabilize verb
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