significant/sIgˋnIfəkənt; sIɡˈnIfIkənt/adj 1 noticeable or important [ insignificant ] 显著的﹔重要的﹐有意义的: significant change/difference/increase etc significant changes in the exam system 考试制度的重大变革2 a significant smile, look etc has a special meaning〔笑容﹑眼神等〕别有含义的﹐意味深长的: He gave me a significant look. 他意味深长地看了我一眼。 —significantly adv : Her work has been significantly better this year. 今年她的工作有了显著的提高。