noun
random thoughts; stray reflections
A somewhat literary or reflective term for thoughts that occur spontaneously, often used in titles of essays or personal notes.
彼の随筆集には「旅の偶感」という章がある。
His essay collection has a chapter called 'Random Thoughts on Travel'.
日記にはその日の偶感を書き留めている。
In my diary, I jot down the stray reflections of the day.