Synonyms of premeditatedly

2 Syllables
freely, coldly
3 Syllables
consciously, knowingly, willfully, designed, wittingly
4 Syllables
purposely, coldheartedly, unfeelingly
5 Syllables
voluntarily, calculatingly, purposively, intentionally, purposefully
6 Syllables
deliberately
7 Syllables
premeditatively