RichThesaurus
unsustainable
unsustainable
synonyms
shaky
implausible
unjustifiable
unwarranted
groundless
flawed
indefensible
defective
illogical
senseless
unfounded
unsound
insupportable
weak
absurd
preposterous
unacceptable
invalid
untenable
baseless
faulty
flimsy
unjustified
ill-founded
specious
irrational
inadmissible
arbitrary
unendurable
refutable
unbearable
no-win
undefendable
impossible
unwarrantable
intolerable
unarguable
desolate
uninhabitable
wrong
helpless
unsupportable
unholdable
unbalanced
unsustainable
antonyms
tenable
tolerable
defensible
bearable