unstable
1 ENTRIES FOUND:
Britannica Dictionary definition of UNSTABLE
[more unstable; most unstable]
:
not stable: such as
a
:
likely to change
-
unstable prices
-
unstable weather
b
:
not emotionally or mentally healthy
-
She is emotionally/mentally unstable.
c
:
not held in a secure position
:
likely to move or fall
-
an unstable tower/ladder
d
technical
:
having a chemical structure or physical state that changes easily
-
an unstable nuclear reactor core
-
an unstable element
