ditherer       
noun [ C ]  disapproving uk/ˈdɪð.ər.ər/ us/ˈdɪð.ɚ.ɚ/
 犹豫不决的人
someone who finds it difficult to make decisions
  He's gaining a reputation here as a bit of ditherer, someone who can't really make decisions.  他在这里得了个犹豫不决的名声,一个不能真正做决定的人。 
 He needs to persuade electoral ditherers to vote for him. 他需要说服犹豫不决的选民投票给他。 
 See: dither
 - More examples
- His desire to please everyone has often rendered him a ditherer.
- There are two types of people: doers and ditherers.
- It's annoying when you get stuck behind a cash machine ditherer.