一点儿也没有,丝毫没有
not at all or not even a small amount
  Don't listen to her! There's not a jot of truth (= there is no truth) in what she's saying. 别听她的!她没有一句实话。 
 None of the committee's proposals will matter a jot (= they will not matter) if no one reads their report. 如果没人读委员会的报告,他们的建议就一点儿用也没有。 
 There wasn't a jot ofhumour in his speech.
 They care not one jot for other people's feelings.
 They're both dishonest. There isn't a jot of difference between them.
 See also: jot noun