in-,不，非，adequate,足够的。

1. Regrettably we have to house families in these inadequate flats.

很遗憾，我们不得不让住户挤在这些狭小的公寓里。

2. Government initiatives to help young people have been inadequate.

政府在积极帮助年轻人方面做得还不够。

3. The crash was a direct result of inadequate navigational aids.

坠机是导航不力的直接后果。

4. In court filings, they argued that the settlement was inadequate.

在法庭讼案中，他们提出和解费数额太少。

5. The results prove that regulation of the salmon farming industry is inadequate.

结果证明对鲑鱼饲养行业的管理不够完善。