不如 (bùrú) packs the whole English phrase "not as … as" into a single word. Where the everyday 没有 frame says A falls short in a plain, spoken way, 不如 says the same thing with a tighter, more written-sounding feel — and it does something 没有 can't: with no adjective at all, A 不如 B defaults to "A is not as good as B." So 我不如他 needs no further word to mean "I'm not as good as him." Beyond straight comparison, 不如 anchors two high-frequency patterns — the suggestion "might as well / better to" (不如去吧) and the paired 与其…不如… ("rather than… better…"). One small word, a lot of range.
A 不如 B (+ adjective): not as … as
The core frame is A 不如 B + adjective, and the adjective always names the quality in its positive direction. To say walking is slower, you say it is not as fast — 走路不如坐车快 — never "not as slow." Like 没有, 不如 already carries the "falls short" meaning, so the adjective just names the dimension.
我不如他聪明。
wǒ bùrú tā cōngming
I'm not as smart as he is. (neutral)
走路不如坐车快。
zǒulù bùrú zuòchē kuài
Walking isn't as fast as taking the car. (neutral) — the adjective 快 stays positive, never 慢.
这家店的菜不如那家好吃。
zhè jiā diàn de cài bùrú nà jiā hǎochī
This restaurant's food isn't as tasty as that one's. (informal)
不如 with no adjective = 'not as good as'
Drop the adjective and 不如 doesn't become vague — it snaps to a fixed meaning: not as good as. 我不如他 is a complete thought ("I'm not his equal"). This is unique to 不如; you cannot leave 没有 hanging the same way to mean "worse."
今年不如去年。
jīnnián bùrú qùnián
This year isn't as good as last year. (neutral) — no adjective, so it defaults to 'not as good'.
我的记性不如从前了。
wǒ de jìxing bùrú cóngqián le
My memory isn't what it used to be. (informal)
百闻不如一见。
bǎi wén bùrú yí jiàn
Seeing once beats hearing a hundred times. (literary, idiom) — literally 'a hundred hearings are not as good as one look'.
与其 A 不如 B: 'rather than A, better B'
不如 also compares two courses of action, recommending the second. On its own, 不如 + a suggestion means "you might as well / it'd be better to." Paired with 与其 (yǔqí, "rather than") in front of the first option, it forms the tidy 与其 A 不如 B — "rather than A, better to B."
| Pattern | Meaning | Example |
|---|---|---|
| A 不如 B | A is not as good as B | 我不如他 (I'm not his equal) |
| A 不如 B + adj | A is not as [adj] as B | 走路不如坐车快 |
| 与其 A 不如 B | rather than A, better B | 与其等，不如去 |
| 不如 + suggestion | might as well / better to | 不如明天再说 |
时间不早了，不如明天再说吧。
shíjiān bù zǎo le, bùrú míngtiān zài shuō ba
It's getting late — how about we pick this up tomorrow instead. (informal) — 不如 + suggestion.
你一个人在家，不如跟我们一起去吃饭。
nǐ yí ge rén zài jiā, bùrú gēn wǒmen yìqǐ qù chīfàn
You're home on your own — you might as well come out to eat with us. (informal)
与其在这儿干等，不如自己去问一下。
yǔqí zài zhèr gàn děng, bùrú zìjǐ qù wèn yíxià
Rather than just standing here waiting, you'd be better off going to ask yourself. (neutral)
与其买新的，不如把旧的修一修。
yǔqí mǎi xīn de, bùrú bǎ jiù de xiū yi xiū
Rather than buying a new one, it's better to fix up the old one. (informal)
Common Mistakes
1. Stacking 没有 and 不如 together. They are two ways to say the same thing — pick one. Doubling them is ungrammatical.
❌ 我没有不如他聪明。
Wrong — 没有 and 不如 don't stack. Say either 我没有他聪明 or 我不如他聪明.
✅ 我不如他聪明。
wǒ bùrú tā cōngming
I'm not as smart as he is. (neutral)
2. Putting the adjective before B (English order). The dimension word comes after B, not after A: A 不如 B + adj.
❌ 我聪明不如他。
Wrong order — the adjective follows B: 我不如他聪明.
✅ 我不如他聪明。
wǒ bùrú tā cōngming
I'm not as smart as he is. (neutral)
3. Using the negative-direction adjective. Because 不如 already means "falls short," the adjective must stay positive. "Walking is slower" is not as fast, not not as slow.
❌ 走路不如坐车慢。
Wrong — the adjective stays positive: 走路不如坐车快 (walking isn't as fast).
✅ 走路不如坐车快。
zǒulù bùrú zuòchē kuài
Walking isn't as fast as taking the car. (neutral)
4. Confusing 不如 with 不比. 不如 says A is clearly worse; 不比 only says A is no better (often about equal). They point in different directions.
❌ 我不如他好，我们水平差不多。
Contradictory — 不如 means clearly worse, so it clashes with 'about the same'. Use 我不比他好.
✅ 我不比他好，我们水平差不多。
wǒ bùbǐ tā hǎo, wǒmen shuǐpíng chàbuduō
I'm no better than him — our levels are about the same. (informal)
Key Takeaways
- A 不如 B (+ adj) compresses "A is not as … as B" into one word; the adjective goes after B and stays positive.
- With no adjective, 不如 defaults to "not as good as": 我不如他 = I'm not his equal.
- 不如 also means "might as well / better to" (不如明天再说), and pairs as 与其 A 不如 B ("rather than A, better B").
- Register: 不如 is more formal and written than the spoken 没有 — the two are alternatives, never stacked.
- Don't confuse it with 不比: 不如 = clearly worse; 不比 = no better, often about equal.
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- 'Not As … As': A 没有 BHSK 2 — The negative of a 比 comparison is 没有, not 不比: A 没有 B + adjective = 'A is not as … as B' — 我没有你高 'I'm not as tall as you'. Literally 'A doesn't have B's height', with the adjective staying positive.
- The Subtle 不比HSK 4 — 不比 (bùbǐ) doesn't mean 'less than' — A 不比 B + adj says 'A is no more … than B', a contrastive hedge that often implies the two are about equal: 我不比你高 = I'm no taller than you.
- 与其…不如… (Rather Than…, Better To…)HSK 5 — 与其…不如… (yǔqí…bùrú) weighs two courses of action and recommends the second: 与其在这儿等，不如现在就走 'rather than wait here, better to leave now'. The rejected option follows 与其, the preferred one follows 不如.
- 口语 vs 书面语 — The Core Register AxisHSK 4 — The central stylistic split in Chinese is 口语 (kǒuyǔ, spoken) vs 书面语 (shūmiànyǔ, written): the same idea has a casual form and a literary form. 现在 (now) vs 目前/如今; 但是 (but) vs 然而. It is not politeness — it is 'get' vs 'obtain'.