fragmentary thoughts; random thoughts
Refers to disconnected or miscellaneous thoughts, often used in literary or reflective contexts. Not a common everyday word.
His essay is a collection of daily fragmentary thoughts.
I jotted down my impressions from the trip as random thoughts in a notebook.
Compound of 断 (fragment, break) and 想 (thought, idea). The exact historical derivation is uncertain, but the meaning is transparent from its components.