Amethodical

They suggest instead a shift in the development mode from structured, orderly and methodical to unstructured, emergent and amethodical to fulfill the requirements set by the new development environments.

Source: wiktionary

In one-off customer relationships, the amethodical approach was favored (although company B was also amethodical with a solid customer base).

Source: wiktionary

It is remarkable that even though the approach taken in the case study was of a highly methodical nature, two of the three shortcomings of amethodical approaches as earlier outlined were experienced.

Source: wiktionary

Moreover, “the concept of method ... occupies an extremely privileged status in formal information systems development thought” while “the possibility that amethodical development might be the normal way” of building systems has “almost entirely elud[ed] the systems development literature."

Source: wiktionary