unsystematically
Definitions
In a manner that lacks a plan, method, or organized structure.
Without following a consistent or regular system.
Examples
The files were scattered unsystematically across the desk, making it impossible to find the report.
He approached the complex problem unsystematically, jumping from one idea to another without a clear plan.
The data had been collected unsystematically over several years, which made the final analysis quite difficult.
Synonyms
haphazardly randomly chaotically disorderly aimlessly erratically unmethodically
Antonyms
systematically methodically orderly organizedly logically structurally regularly