distant 语意最强，强调距离。
far 除特殊情况外，侧重长距离。也可用作引申意义。
remote 侧重指离中心地有利的地方很远。
参考例句
1. In the distant future people may live on the moon. 在遥远的将来人类有可能在月球上生活。
2. These plumes then mix with other, more distant gas, and heat it up as well. 这些羽状物于是和更远的气体混合起来，同样也给它们加热。
3. So the most distant way in the world is the love between the fish and bird. 世界上最远的距离，是鱼与飞鸟的距离，一个在天，一个却深潜海底。
英英解释
adj.
1. separated in space or coming from or going to a distance
2. far apart in relevance or relationship
3. remote in manner
4. separate or apart in time
5. apart in space
