1. Meandering: refers to the winding extension of mountains, rivers, roads, etc.
2. Bending: The original meaning is the bending strength of non straight wood, which usually means that it is curved but not straight.
3. Twists and turns: refers to the twists and turns in the process of events.
4. Rough: describes the bumpy road. Things are not going well or satisfactory. The metaphor is not successful.
5. Rugged: The appearance of uneven ground. Sometimes it is also used as a metaphor for hard life.
6. Detention: It refers to the twists and turns of tunes, roads, rivers, etc.
7. Winding: It refers to winding.
8. Circuitous: the directions are very tortuous.