- 走极端 zǒujíduān to go to extremesto be extreme in one's words or actions; to take things to an extreme degree
- 极端主义者 jíduānzhǔyìzhě extremista person who holds extreme or fanatical political or religious views
- 极端分子 jíduānfènzǐ extremista person whose behavior, personality, or attitudes differ significantly from the mainstream; often refers to those who are self-righteous and unwilling to accept the opinions of others
- 极端派 jíduānpài extremistextremist; radical; a person who holds extreme views or belongs to an extremist group
- 极端之恶 jíduānzhī'è radical evil(philosophy) the concept of radical evil, especially in the context of moral philosophy or political theory
- 极端主义 jíduānzhǔyì extremismpolitical or religious extremism; radicalism
