unstable
adj
ʌnˈsteɪbəl
adj
1
likely
to
change
suddenly
and
become
worse
不稳定的，易变的，动荡不定的;
The
political
situation
is
still
very
unstable.
政局依然非常动荡。
an
unstable
relationship
不稳定的关系
2
something
that
is
unstable
is
likely
to
move
or
fall
〔物〕易倒下的，不稳固的
3
someone
who
is
unstable
changes
very
suddenly
so
that
you
do
not
know
how
they
will
react
or
behave
〔人〕反复无常的，动摇不定的
a
mentally
unstable
man
精神状态不稳定的男子
4
an
unstable
chemical
is
likely
to
separate
into
simpler
substances
〔化学物质〕不稳定的，易分解的