unmethodic
/ʌnˈmɛθətɪk/Definitions
1. adjective
lacking a method or system; unorganized or disorganized
“Her unmethodic approach to planning led to a chaotic schedule.”
2. adjective
not methodical or systematic
“The professor’s unmethodic teaching style made it difficult for students to follow.”
3. noun
a lack of method or system
“Her unmethodic nature was a source of frustration for her colleagues.”