胆大妄为

膽大妄為
dǎndàwàngwéi
  1. daring
  2. presumptuous
  3. daredevil

CEDICT

肆无忌惮的胡作非为。

重編國語辭典

Entry Composition

1 胆大 dǎndà
  1. daring
  2. bold
  3. audacious
2 妄为 wàngwéi to take rash action

Related entries

胆大 dǎndà
  1. daring
  2. bold
  3. audacious
敢 gǎn
  1. to dare
  2. daring
  3. (polite) may I venture
他怎么敢抱怨？

How dare he complain?

Source: Tatoeba

魄力 pòlì
  1. courage
  2. daring
  3. boldness
  4. resolution
  5. drive
大胆 dàdǎn
  1. brazen
  2. audacious
  3. outrageous
  4. bold
  5. daring
  6. fearless
你们也太大胆了吧！

You were also too brave!

Source: Tatoeba

冒昧 màomèi
  1. bold
  2. presumptuous
  3. to take the liberty of
非份 fēifèn
  1. improper
  2. presumptuous
  3. assuming
  4. overstepping one's bounds
  5. also written 非分 fēifèn
非分 fēifèn
  1. improper
  2. presumptuous
  3. assuming
  4. overstepping one's bounds
  5. also written 非份 fēifèn
妄 wàng
  1. absurd
  2. fantastic
  3. presumptuous
  4. rash
你不可以妄下結論。

You must not jump to conclusions.

Source: Tatoeba

放肆 fàngsì
  1. wanton
  2. unbridled
  3. presumptuous
  4. impudent
别对我放肆，小姑娘!

Don't get sassy with me young lady!

Source: Tatoeba

蛮干 mángàn
  1. to act rashly
  2. to act precipitously regardless of the consequences
  3. reckless
  4. foolhardy
  5. daredevil