They dismissed the problem as unimportant.
他们认为这个问题无关紧要而不予理会。
This consideration was not unimportant.
这项考虑并非无关紧要。
It was an unimportant job, and paid very little
这份工作无足轻重，而且薪水还很低。
I thought that cooking and housekeeping were unimportant, easy tasks.
我认为做饭和料理家务微不足道，一下子就能搞定。
When they had married, six years before, the difference in their ages had seemed unimportant.
他们6年前结婚时，年龄的差距似乎并不重要。