The opposite of beautiful or handsome is ugly –but that's a strong word, so most people express this idea using the negative form of one of the positive words, for example: “She's not very attractive”or “He's not so good-looking.”
美麗和帥氣的反義詞當(dāng)然是丑陋（ugly）啦——但是這可是一個(gè)感情色彩很強(qiáng)烈的單詞，所以大多數(shù)人一般會(huì)用褒義詞的否定說(shuō)法來(lái)表達(dá)“丑”，比如說(shuō)：“She's not very attractive”（她不是很有吸引力）或者“He's not so good-looking”（他長(zhǎng)得不那么好看）。

Finally, there is the word plain –that describes a person who is ordinary-looking –not especially beautiful/handsome, but not especially ugly either.
最后還有一個(gè)單詞plain——這個(gè)是用來(lái)表達(dá)一個(gè)人相貌平平的，沒(méi)有特別好看也沒(méi)有特別丑。