下面的内容摘自一本原版语法著作，供参考：

1. classifying adjective 分类形容词

An adjective which is used to identify something as being of a particular type is an classifying adjective, eg. Indian, wooden, mental. They do not have comparatives or superlatives. Here is a list of classifying adjectives:

absolute, active, actual, agricultural, alternative, annual, apparent, available, basic, central, chemical, civil, commercial, communist, conservative, cultural, daily, democratic, direct, domestic, double, due, east, eastern, economic, educational, electric, empty, external, female, financial, foreign, free, full, general, golden, historical, human, ideal, independent, industrial inevitable intellectual, internal, international, legal, local, magic, male, medical, mental, military, modern, moral, national, natural, negative, north, northern, nuclear, official, open, original, personal, physical, political, positive, possible, potential, private, professional, proper, public, raw, ready, real, religious, revolutionary, right, royal, rural, scientific, separate, sexual, single, social, solid, sooth, southern, standard, straight, sufficient, theoretical, traditional, urban, west, western, wooden, wrong.

2. qualitative adjective 性质形容词

An adjective which is used to indicate a quality, and which is gradable, is an qualitative adjective, eg. funny, intelligent, small. Here is a list of qualitative adjectives:

active, angry, anxious, appropriate, attractive, bad, beautiful, big, brief, bright, broad, busy, calm, careful, cheap, clean, clear, close, cold, comfortable, common, complex, cool, curious, dangerous, dark, dear, deep, determined, different, difficult, dirty, dry, easy, effective, efficient, expensive, fair, familiar, famous, fast, fat, fine, firm, flat, frank, free, fresh, friendly, frightened, funny, good, great, happy, hard, heavy, high, hot, important, interesting, kind, large, late, light, likely, long, loose, loudlovely, low, lucky, narrow, nervous, new, nice, obvious, odd, old, pale, patient, plain, pleasant, poor, popular, powerful, pretty, proud, quick, quiet, rare, reasonable, rich, rough, sad, safe, sensible, serious, sharp, shocked, short, sick, significant, silly, simple, slow, small, soft, special, steady, strange, strong, stupid, successful, suitable, sure, surprised, sweet, tall, terrible, thick, thin, tight, tiny, tired, typical, understanding, useful, violent, warm, weak, wet, wide, wild, worried, young.