noun
amateur's shallow thoughts; layperson's opinion
Often used modestly to refer to one's own ideas, implying a lack of expertise.
素人考えですが、この問題はもっと簡単に解決できると思います。
This is just a layperson's opinion, but I think this problem can be solved more easily.
彼の提
His suggestion was an amateur's shallow thought and was ignored by the experts.