Fluentide
HSK 4

苦

bitter; hardship; to suffer

adjectiveneutral1 episode
苦
kǔ3rd tone

HSK level

1
2
3
4
5
6
Pinyin
kǔ
Part of speech
adjective
Level
HSK 4
Strokes
8
Register
neutral
In episodes
1

Stroke order for 苦

苦 is written with 8 strokes. The animation replays automatically.

What does 苦 mean?

苦 (kǔ) is primarily an adjective meaning 'bitter' — the taste of unsweetened coffee, bitter melon, or strong tea.

By extension it means 'hard, painful, difficult,' describing a tough life or grueling experience, and as a verb-like element it can mean 'to suffer' or 'to make someone suffer.' English keeps taste and hardship in separate words (bitter vs. hard), but Chinese lets 苦 carry both: 这个药很苦 (this medicine is bitter) and 他的生活很苦 (his life is hard) use the same character.

The 'hardship' sense is culturally loaded — 吃苦 ('to eat bitterness') means to endure hardship, seen as a virtue. As an adverb it also means 'painstakingly / bitterly' (苦练, 苦等). Note that unlike English 'bitter,' 苦 is not used for a resentful mood; for that Chinese uses different words.

Note: Everyday word in both speech and writing. In its 'hardship' sense it carries a slightly emotional, sometimes literary weight, especially in set phrases like 吃苦 and 苦日子.

Memory hook: The grass radical (艹) on top hints at a bitter herb — the plant you'd chew when medicine tastes awful.

Hear 苦 in real episodes

苦 appears in 1 Fluentide podcast episode at natural native speed. Each sentence plays at the easiest difficulty it exists in — switch it to hear the same moment at your level, with full pinyin and English throughout.

树得了这种病,橙子还没有熟,就掉下来了,味道也很苦。

When a tree gets it, the oranges fall off before they're ripe, and they taste bitter too.

Citrus Greening Wiped Out 95% of Florida's Oranges. Can Gene Editing Bring Them Back?

Difficulty
Browse the full episode library

Example sentences

这杯咖啡太苦了,我要加点糖。

Zhè bēi kāfēi tài kǔ le, wǒ yào jiā diǎn táng.

This coffee is too bitter; I want to add some sugar.

spoken

小时候家里很穷,日子过得很苦。

Xiǎoshíhou jiā lǐ hěn qióng, rìzi guò de hěn kǔ.

When I was little my family was poor and life was hard.

neutral

为了考上大学,他吃了很多苦。

Wèile kǎoshàng dàxué, tā chī le hěn duō kǔ.

To get into university, he endured a lot of hardship.

neutral

良药苦口。

Liángyào kǔkǒu.

Good medicine tastes bitter.

written

Common phrases with 苦

吃苦chī kǔto endure hardship
辛苦xīnkǔhard-working; to go to trouble
苦日子kǔ rìzihard times
苦练kǔ liànto train hard; to practice painstakingly

Synonyms

辛苦xīnkǔ

辛苦 focuses on toil and being worn out from effort; it's also a set thank-you (辛苦了). 苦 alone is broader — it covers the bitter taste and general hardship, not just laborious effort.

痛苦tòngkǔ

痛苦 means acute suffering or agony (physical or emotional). 苦 is milder and more everyday — a hard life or a bitter taste, not intense pain.

Don't confuse 苦 with

哭kū

哭 (kū, first tone) means 'to cry.' 苦 (kǔ, third tone) means 'bitter.' They share a shape but differ in tone and meaning — a common beginner mix-up.

辣là

辣 means 'spicy / hot.' 苦 means 'bitter.' Both are flavors but describe entirely different taste sensations.

Frequently asked questions

Related words from the same episodes

Acquire it by listening

Meet 苦 again — in real Chinese, at your level.

You just saw 苦 in 1 episode. Fluentide keeps feeding you news episodes at your level, so this word — and thousands like it — resurface in real sentences until they stick. Full pinyin and translation every time. Free to start.