Meanings of less methodical in English

He becomes less methodical and deliberate in his actions.

Then I began to grow less methodical and regular in my habits of exercise; and then to find excuses for my delinquencies.

This research would have fully occupied a less methodical workman, and even to those who saw him at work it seemed his whole occupation.

Alas, when clocks disagree what hope is there for less methodical mechanisms, particularly such humpty-dumpty mechanisms as tick away inside the owners of clocks?