Longman Dictionary of Contemporary English homepage

Date: 1200-1300
Language: Old French
Origin: estable, from Latin stabilis, from stare 'to stand'

stable

1 adjective
     
Related topics: Chemistry
sta‧ble1 W3
1 steady and not likely to move or change [≠ unstable; ↪ stability]:
A wide base will make the structure much more stable.
in a stable condition British English /in stable condition American English
He is said to be in a stable condition in hospital.
Children like a stable environment.
2 calm, reasonable, and not easy to upset [≠ unstable]:
He was clearly not a very stable person.
3 technicalHC a stable substance tends to stay in the same chemical or atomic state [≠ unstable]
stably adverb

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