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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.
sober - Serious and thoughtful in mood or behavior, not playful or exaggerated; or not under the influence of alcohol or drugs; clear-minded.
It was a year since he gave up drinking and had decided to remain sober all the time, and it took strength to just walk past the bar.