not differentiable (function in calculus)
impossible; cannot; not able
insoluble (i.e. impossible to solve)
to consider oneself unexcelled in the world; to be insufferably arrogant
inestimable; incalculable; beyond measure
inviolable; inviolability
inalienable; unalienable; inseparable; indivisible
indescribable; beyond description
hidden; kept secret; not to be divulged
unpredictable eventuality; unpreventable; unavoidable; impossible to overcome; nothing can be done about it; act of God; force majeure
irremediable; unmanageable; out of hand; hopeless
incurable; incorrigible; beyond cure; hopeless
agnosticism, the philosophical doctrine that some questions about the universe are in principle unanswerable
to be unable to carry on even for a single day; to be in a desperate situation
having no common measure; incommensurable; incommensurate
impassable; insurmountable; insuperable
uncountable noun (in grammar of European languages)
irrevocable letter of credit
invulnerable, indestructible, impregnable
essential; indispensable; absolutely necessary
impatient; eager to; anxious to
unable to refuse because of affection
to be so thirsty as to no longer be able to tolerate it
not a single one is dispensable; can't do without either
unbearable stink; (fig.) notorious
impossible to put into words; inexpressible
unattainable; far-fetched; out of reach; exceedingly remote or distant
unstoppable; hard to hold back
neither for nor against sth; indifferent
things that have happened can hardly be controlled; to get out of hand
may be done once and once only; just this once
absolute necessity; sine qua non
see 人不可貌相，海水不可斗量[ren2 bu4 ke3 mao4 xiang4 , hai3 shui3 bu4 ke3 dou3 liang2]
nothing is impossible; there's nothing impossible about it
(lit.) the fish and the bear's paw, you can't have both at the same time (idiom, from Mencius); fig. you must choose one or the other; you can't always get everything you want; you can't have your cake and eat it
We are working on the application, please come back in few minutes.
