Hate
Really Hate, Detestable
noun, な adjective
Remember how 嫌い is to dislike? When that dislike is big, you really dislike it. That means you hate (or really hate) it.
As with 嫌い, a more literal translation is detestable.
The reading is the reading for 大, and the reading for 嫌い is like the one you learned with 嫌い in level 20.
大嫌いな食べ物は何ですか。
What food do you really hate?
世の中には、トーフグのことが大嫌いな人もいるらしい。
I heard that there are some people in the world who hate Tofugu.
コウイチはあなたのことが大嫌いなので、彼に代わってビエトがお会いします。
Mr. Viet will meet with you instead of Mr. Koichi because Mr. Koichi really hates you.