noun
miscellaneous thoughts; random impressions
Used for a collection of casual, unsystematic thoughts or impressions on a topic, often in titles of essays, columns, or blog posts.
彼のブログには旅先での雑感が綴られている。
His blog is filled with miscellaneous thoughts from his travels.
会議の後、参加者から雑感を聞いた。
After the meeting, I asked the participants for their random impressions.