unsystematic
- a lacking systematic arrangement or method or organization
unsystematic and fragmentary records
he works in an unsystematic manner
- His mind was rich and lively, but it was unsystematic and inconsistent.
- Snorts a Chicago psychoanalyst of neo-Freudian persuasion: "Rogers' method is unsystematic, undisciplined and humanistic.
- The book is quite diffuse and unsystematic, and the samples in the projects described are very small.