‘艰难’ is an adjective meaning 'arduous', 'tough', or 'difficult'—especially when describing situations that involve great effort, hardship, or adversity. It combines two characters with overlapping meanings: 艰 (jiān) conveys hardship, strain, or severity, while 难 (nán) means 'difficult' or 'hard to do'. Together, they intensify the sense of challenge—not just intellectual difficulty but emotional, physical, or circumstantial struggle. The word often implies endurance and perseverance, and is commonly used in formal writing, news reports, speeches, and narratives about personal growth, historical events, or social challenges.

Unlike simpler words like 难 (nán) alone, 艰难 carries a weightier, more solemn tone—it’s rarely used for minor inconveniences (e.g., not for 'This coffee is hard to stir'). Instead, it fits contexts like economic hardship, recovery after disaster, or long-term personal trials. It frequently appears in fixed phrases such as 艰难时刻 (a tough moment), 艰难处境 (a difficult situation), or 艰难前行 (to move forward with difficulty).