significant
adj
sɪɡˈnɪfɪkənt adj
1 having an important effect or influence, especially on what will happen in the future 〔尤指对将来〕重要的，重大的，影响深远的;
His most significant political achievement was the abolition of the death penalty.
他政治上的最大成就是废除了死刑。
Please inform us if there are any significant changes in your plans.
你们的计划如有重大变动，请通知我们。
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The result is highly significant for the future of the province.
这一结果对该省的未来极为重要。
it is significant that
It is significant that the writers of the report were all men.
写这份报告的都是男人，这一点很重要。
2 large enough to be noticeable or have noticeable effects 相当数量的; 影响明显的;
A significant number of drivers fail to keep to speed limits.
有相当多的司机不遵守车速限制。
A significant part of Japan’s wealth is invested in the West.
日本有很大一部分财富投资在西方国家。
There is a significant difference between the number of home births now and ten years ago.
现在家中分娩的人数和十年前相比有明显的差别。
The rise in temperature is not statistically significant .
从统计角度来看，气温的上升并不明显。
3 a significant look, smile etc has a special meaning that is not known to everyone 〔眼神、微笑等〕意味深长的，别有含意的
He gave me a significant look.
他意味深长地看了我一眼。