root and branch
[ ˌruːt ən(d) ˈbrɑːn(t)ʃ ]
• used to express the thorough or radical nature of a process or operation.
• "root-and-branch reform of personal taxation"
Similar:
completely,
entirely,
wholly,
totally,
utterly,
thoroughly,
radically,
complete,
total,
entire,
utter,
thorough,
radical,
