ADJ [with neg, usually ADJ n]不值得考虑的;小的;无足轻重的 If you describe an amount or quality as not inconsiderable, you are emphasizing that it is, in fact, large or present to a large degree. 不值得考虑的;小的;无足轻重的 [emphasis]
The production costs are a not inconsiderable £8 million.
生产成本相当大,达800万英镑。
He was a man of great charm and not inconsiderable wit.