Adjective
premeditated - Done with prior thought or preparation; thought out or planned in advance, often with careful consideration or intention.
The detective revealed that the crime was premeditated, with evidence showing the suspect had planned it for weeks.
regimented - Referring to something that is arranged in a highly structured or ordered manner, often with little room for flexibility or deviation.
He was determined to lose weight, and he realized that he could accomplish this only with a regimented approach to exercize and diet.