significant

significant, important, momentous

这些形容词均含“重要的，重大的”之意。
significant: 指某事物由于特别优秀或特别有意义而显得重要与突出。
important: 最普通用词，指有权威、有影响的人或值得注意的、有价值的事物。
momentous: 指极其重要的。

形容词 significant:

1. important in effect or meaning
   同义词：important
2. fairly large
   同义词：substantial
3. too closely correlated to be attributed to chance and therefore indicating a systematic relation
4. rich in significance or implication
   同义词：meaning, pregnant

1. Share prices showed significant advances today.
   今日股票价格大幅上涨。
2. Her appointment was a significant, (al)though/albeit temporary success.
   她受聘虽说是临时性的，但却是一大成功。
3. A short significant phrase in a composition.
   乐旨乐曲中简短而重要的短句
4. A trite or banal remark or statement, especially one expressed as if it were original or significant.
   陈腔滥调陈腐的或平庸的评论或陈述，尤指某人表述它时好象它是新颖的或有意义的
5. Few people realized the discovery was significant.
   很少有人认识到这一发现的重要性。
6. Their change of plan is strange but I don't think it's significant.
   很奇怪他们改变了计划，但我觉得没有什么用处。