unmethodical

Definitions

Lacking a systematic or orderly approach; disorganized.

Characterized by a lack of method or regular procedure.

Examples

His unmethodical approach to organizing the project files led to significant delays.

The researcher's unmethodical collection of data made it difficult to draw any reliable conclusions.

Synonyms

disorganized chaotic haphazard unsystematic disorderly messy scatterbrained

Antonyms

methodical organized systematic orderly structured disciplined meticulous