inestable bedeutet auf Englisch

fitful▼(characterized by sudden bursts of activity with periods of inactivity in between, see also: intermittent; irregular)
adjective
[UK: ˈfɪt.fəl] [US: ˈfɪt.fəl]

unstable▼(not stable)
adjective
[UK: ʌn.ˈsteɪb.l̩] [US: ʌn.ˈsteɪb.l̩]Libya is so unstable. = Libia es muy inestable.