Verb (5-dan, す, transitive)
1. to see without obstruction; to get an unobstructed view (of); to see through
かなり深いらしくて、すべてを見通すことはできない。It seems to be quite deep, so it is not possible to see through everything.
2. to see into (someone's thoughts); to read (someone's feelings, intentions, etc.); to see through (e.g. someone's plans)
人の心なんて簡単に見通せますよ。Seeing into people's hearts is easy.
3. to foresee; to predict; to forecast; to anticipate
そのあとのことなんて、誰にも見通せませんでした。No one could foresee what would happen after that.
4. to watch from start to finish