Antonyms for stable
all:
unstable.
constant, fixed; resistant:
unprotected,
indefinite,
shaky,
impermanent,
ephemeral,
unsound,
insecure,
changing,
flexible,
unfixed,
loose,
wobbly,
unreliable,
different,
soft,
unstable,
temporary,
weak,
broken,
changeable,
undependable,
imbalanced,
irresolute,
untrustworthy,
inconstant,
unsafe,
intermittent,
vulnerable.
noun:
distraught,
crazed,
delirious,
disturbed,
ballistic,
scatty,
fixated,
depressed,
raving,
berserk,
evanescent,
witless,
eccentric,
psychotic,
dotty,
deranged,
monomaniac,
distracted,
unsubstantial,
fleeting,
aberrant,
open-ended,
unreasonable,
balmy,
mixed-up,
moonstruck,
hysterical,
odd,
crazy,
foolish,
ape,
tipsy,
infirm,
momentary,
fruity,
loco,
daft,
strange,
nutty,
maniacal,
Daffy,
transitory,
paranoiac,
mad,
potty,
cuckoo,
pixilated,
certifiable,
imbalanced,
senseless,
batty,
off,
cracked,
neurotic,
paranoid,
weak,
lunatic,
schizophrenic,
insane,
kaleidoscopic,
amok,
nuclear,
despondent,
unspecified,
wacko,
mental,
screwy,
bughouse,
oddball,
crackpot,
ephemeral,
demented,
psycho,
delusional,
irrational,
disordered,
negotiable,
loony,
delusionary,
bananas,
monomaniacal,
brainsick,
obsessed,
haywire,
gaga,
crackbrained,
obsessive-compulsive,
reactive,
transient,
phantasmagoric,
frantic,
loopy,
nuts,
frenzied,
meshuga,
indefinite,
wacky,
schizoid.