| 1 | 难 | 難 | nán | nan2 | difficult (to...); problem; difficulty; difficult; not good | | |
| 2 | 难道 | 難道 | nán dào | nan2 dao4 | don't tell me ...; could it be that...? | | |
| 3 | 难以 | 難以 | nán yǐ | nan2 yi3 | hard to (predict, imagine etc) | | |
| 4 | 艰难 | 艱難 | jiān nán | jian1 nan2 | difficult; hard; challenging | | |
| 5 | 难过 | 難過 | nán guò | nan2 guo4 | to feel sad; to feel unwell; (of life) to be difficult | | |
| 6 | 难免 | 難免 | nán miǎn | nan2 mian3 | hard to avoid; difficult to escape from; will inevitably | | |
| 7 | 难得 | 難得 | nán dé | nan2 de2 | seldom; rare; hard to come by | | |
| 8 | 难题 | 難題 | nán tí | nan2 ti2 | difficult problem | | |
| 9 | 难受 | 難受 | nán shòu | nan2 shou4 | to feel unwell; to suffer pain; to be difficult to bear | | |
| 10 | 难怪 | 難怪 | nán guài | nan2 guai4 | (it's) no wonder (that...); (it's) not surprising (that) | | |
| 11 | 为难 | 為難 | wéi nán | wei2 nan2 | to feel embarrassed or awkward; to make things difficult (for someone); to find things difficult (to do or manage) | | |
| 12 | 难看 | 難看 | nán kàn | nan2 kan4 | ugly; unsightly | | |
| 13 | 难度 | 難度 | nán dù | nan2 du4 | trouble; problem | | |
| 14 | 难忘 | 難忘 | nán wàng | nan2 wang4 | unforgettable | | |
| 15 | 难堪 | 難堪 | nán kān | nan2 kan1 | hard to take; embarrassed | | |
| 16 | 难关 | 難關 | nán guān | nan2 guan1 | difficulty; crisis | | |
| 17 | 难点 | 難點 | nán diǎn | nan2 dian3 | difficulty | | |
| 18 | 攻坚克难 | 攻堅克難 | gōng jiān kè nán | gong1 jian1 ke4 nan2 | to tackle a thorny problem and overcome its challenges | | |
| 19 | 克难 | 克難 | kè nán | ke4 nan2 | to make do in difficult circumstances by being resourceful; (of circumstances) difficult; challenging; (of a budget) tight; (of a man-made thing) makeshift; rough and ready | | |
| 20 | 插翅难飞 | 插翅難飛 | chā chì nán fēi | cha1 chi4 nan2 fei1 | lit. even given wings, you couldn't fly (idiom); fig. impossible to escape | | |
| 21 | 曾经沧海难为水,除却巫山不是云 | 曾經滄海難為水,除卻巫山不是雲 | céng jīng cāng hǎi nán wéi shuǐ , chú què wū shān bù shì yún | ceng2 jing1 cang1 hai3 nan2 wei2 shui3 , chu2 que4 Wu1 Shan1 bu4 shi4 yun2 | there are no rivers to one who has crossed the ocean, and no clouds to one who has passed Mount Wu (idiom); one who has seen the world doesn't stop at small things | | |
| 22 | 不难 | 不難 | bù nán | bu4 nan2 | Not difficult | | |
| 23 | 错杂难清 | 錯雜難清 | cuò zá nán qīng | cuo4 za2 nan2 qing1 | confused and unclear (idiom) | | |
| 24 | 比登天还难 | 比登天還難 | bǐ dēng tiān hái nán | bi3 deng1 tian1 hai2 nan2 | lit. even harder than reaching the sky (idiom); fig. extremely difficult; far from an easy task | | |
| 25 | 本性难移 | 本性難移 | běn xìng nán yí | ben3 xing4 nan2 yi2 | It is hard to change one's essential nature (idiom). You can't change who you are.; Can the leopard change his spots? (Jeremiah 13:23) | | |