deliberately
deliberate + -ly
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adverb
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.