Difficulty

厄

Adverse, Difficulty, Distress, Experience

艱

Arduous, Difficulty, Hard, Suffering

困境

Difficult, Difficulty

困苦

Difficulty, Hardship

困難

Challenges, Difficult, Difficulty, Hardships, Problems

艱難

Difficult, Difficulty, Hard

難度

Degree, Difficulty

難關

Difficulty

難點

Difficulty