わんとする
iwanto suru

Suru Verb
Expression

1. (what) one is trying to say; (what) one wants to say; (what) one is saying; (what) one means

その教授 きょうじゅ、私 わたくしのいわんとすることが理解 りかいできなかった。
sono kyōjuwa watashino iwanto suru kotoga rikai dekinakatta
The professor was unable to comprehend what I meant.