(of an object or structure) not likely to give way or overturn; firmly fixed:specially designed dinghies that are very stable
(of a patient or their medical condition) not deteriorating in health after an injury or operation:he is now in a stable condition in hospital
sane and sensible; not easily upset or disturbed:the officer concerned is mentally and emotionally stable
not likely to change or fail; firmly established:a stable relationshipprices have remained relatively stable
not liable to undergo chemical decomposition, radioactive decay, or other physical change:isocyanic acid reacts with amino groups to form a stable compoundstable nuclei
