使不得

shǐbude
  1. cannot be used
  2. must not (do sth)
  3. unacceptable

CEDICT

  1. 不能使用。
  2. 不可以、不可行。

重編國語辭典

Homographs

使不得 shǐbùdé

Entry Composition

1 使 shǐ
  1. to make
  2. to cause
  3. to enable
  4. to use
  5. to employ
  6. to send
  7. to instruct sb to do sth
  8. envoy
  9. messenger
2 不得 bùdé
  1. must not
  2. may not
  3. not to be allowed
  4. cannot

Related entries

不容 bùróng
  1. must not
  2. cannot
  3. to not allow
  4. cannot tolerate
雖然激情可能會褪去，卻不容它破壞我們感情上的聯繫。

Though passion may have strained, it must not break our bonds of affection.

Source: Tatoeba

不得 bùdé
  1. must not
  2. may not
  3. not to be allowed
  4. cannot
總統不得解散國會。

The President cannot disband the Parliament.

Source: Tatoeba

不能 bùnéng
  1. cannot
  2. must not
  3. should not
我不能走。

I can't go.

I can't leave.

I cannot leave.

Source: Tatoeba

不许 bùxǔ
  1. not to allow
  2. must not
  3. can't
不许大叫。

Don't shout.

Source: Tatoeba

嫑 biáo
  1. (dialect) don't
  2. must not
  3. (contraction of 不 and 要)
覅 fiào
  1. contraction of 勿要
  2. must not
  3. please don't