たちの悪い

Meaning

1. expadj-f
   of bad character; ill-natured; nasty; vicious; wicked; malignant

Example sentences

• 最近、タチの悪い詐欺事件が多いわね。

  Recently there have been a lot of nasty incidents with fraud.

• どうしてもこのたちの悪い風邪が抜けないのです。

  I simply cannot get rid of this bad cold of mine.

• 外国語の学習者が間違いを恐れずに学習中の言語を使ってみるのは素晴らしいことですが、十分な実力のない人が間違いを恐れずに質の悪い語学教材を作るのはいかがなものかと思います。

  Of course it's a good thing when someone learning a foreign language tries to use it without fear of making mistakes, but I don't think much of people without sufficient ability producing language learning material of poor quality.