頑〔顽〕 waan⁴ {wán}

1. mischievous
2. obstinate
3. to play
4. stupid
5. stubborn
6. naughty

頑敵〔顽敌〕 waan⁴ dik⁶ {wán dí}

a stubborn enemy; a tough enemy; an inveterate foe

頑強〔顽强〕 waan⁴ koeng⁴ {wán qiáng}

firm and determined

頑抗〔顽-〕 waan⁴ kong³ {wán kàng}

resist with persistance

頑皮〔顽-〕 waan⁴ pei⁴ {wán pí}

cheeky

頑鈍〔顽钝〕 waan⁴ deon⁶ {wán dùn}

1. blunt (instrument)
2. stupid
3. thick-headed

頑匪〔顽-〕 waan⁴ fei² {wán fěi}

1. gangster
2. bandit

頑梗〔顽-〕 waan⁴ gang² {wán gěng}

1. obstinate
2. persistent

頑固〔顽-〕 waan⁴ gu³ {wán gù}

1. stubborn
2. obstinate

頑強〔顽强〕 waan⁴ koeng⁴ {wán qiáng}

1. tenacious
2. hard to defeat

頑劣〔顽-〕 waan⁴ lyut³ {wán liè}

1. stubborn and obstreperous
2. naughty and mischievous

頑民〔顽-〕 waan⁴ man⁴ {wán mín}

1. unruly people
2. rebellious subjects
3. disloyal citizens

頑皮〔顽-〕 waan⁴ pei⁴ {wán pí}

naughty

頑童〔顽-〕 waan⁴ tung⁴ {wán tóng}

urchin

頑疾〔顽-〕 waan⁴ zat⁶ {wán jí}

1. ineradicable disease
2. fig. deep-seated problem
3. perennial problem

頑症〔顽-〕 waan⁴ zing³ {wán zhèng}

1. stubborn illness
2. disease that is difficult to treat

頑固派〔顽--〕 waan⁴ gu³ paai³ {wán gù pài}

the diehards

頑石點頭〔顽-点头〕 waan⁴ sek⁶ dim² tau⁴ {wán shí diǎn tóu}

literally: 'even a piece of stone would have been moved', to be so patient and thorough in one's reasoning that all is convinced by it