“不结实”的反义词

“不结实”的英语可以翻译为：[医]unfruitful ...

家具又硬又不舒服，太不结实而且太小巧。The furniture was stiff, uncomfortable, too delicate, and too neat.这书橱很不结实,装不了这么多书.This bookcase is too unstable to hold so many books.鸟的主人说这只鸟可能是从鸟舍一处不结实的地方逃走的。The owner said the bird may have escaped...