區別詞，又叫非謂形容詞，係表示事物特徵同分類，只會用嚟修飾名詞同名詞性短語嘅詞。區別詞大部分只可以做定語，有啲可以做狀語；除咗「非」之外，唔受其他副詞修飾。例子有「雄」、「雌」、「正」、「副」、「大型」、「小型」、「特殊」、「一般性」等等。
Distinguishing words, also known as non-predicate adjectives, are words that denote the characteristics and classification of things, and are only used to modify nouns and noun phrases. Most of the distinguishing words can only be used as adjectives, and some can be used as adverbials, and are not modified by other adverbs except for "non". Examples are "male", "female", "positive", "secondary", "large", "small", "special", "general", etc.