deliberate + -ly

source: [ジョジョの奇妙な冒険のディオがジョナサンを殴り抜けるGIF画像｜無料GIF画像検索 GIFMAGAZINE 649252]

1. consciously and intentionally; on purpose:

故意に, わざと(intentionally, ｟主に話｠ on purpose)(↔ accidentally)

e.g. the fire was started deliberately.

2. in a careful and unhurried way:

慎重に, 用心深く(carefully); ゆっくりと(slowly)

e.g. slowly and deliberately he rose from the armchair.