unsystematic

Definitions of unsystematic
1

adj lacking systematic arrangement or method or organization

unsystematic and fragmentary records”
“he works in an unsystematic manner”
Synonyms:
disorganised, disorganized
lacking order or methodical arrangement or function
irregular
contrary to rule or accepted order or general practice
Antonyms:
systematic
characterized by order and planning
organized
methodical and efficient in arrangement or function
regular
in accordance with fixed order or procedure or principle
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