
absichtlich
deliberately
Intentionally, on purpose, and not by chance or by accident.
Er hat mich absichtlich angerempelt, um einen Streit anzufangen.
He deliberately bumped into me to start an argument.
deliberately
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deliberately
Intentionally, on purpose, and not by chance or by accident.
Er hat mich absichtlich angerempelt, um einen Streit anzufangen.
He deliberately bumped into me to start an argument.
The word 'absichtlich' (deliberately) is derived from the noun 'die Absicht' (intention). If you do something 'mit Absicht' (on purpose), you do it 'absichtlich' (deliberately).
Es war keine Absicht, ich habe dich nicht absichtlich ignoriert.
It wasn't intentional; I didn't deliberately ignore you.
As an adverb, 'absichtlich' (deliberately) can stand flexibly in the sentence, usually before or after the verb it describes. It can also be used alone as an answer or predicatively.
Sie hat die Tür absichtlich offen gelassen.
She deliberately left the door open.
'Absichtlich' (deliberately) is very often used to express that a negative action was intentional and not an accident. It emphasizes responsibility for an act.
Ich glaube, er hat das Glas absichtlich fallen lassen, weil er wütend war.
I think he deliberately dropped the glass because he was angry.
conscious / deliberate
Bewusst and absichtlich can both describe an action that is not accidental. Absichtlich clearly emphasizes that a particular result is intended, while bewusst can also simply stress that someone knows what they are doing or acts attentively. Absichtlich is especially clear when a desired outcome is involved; bewusst leaves more room for the nuance of awareness.

Er stieß die Vase absichtlich um, weil er sie zerbrechen wollte.
He deliberately knocked the vase over because he wanted to break it.
Sie stellte die Vase bewusst an den Rand, obwohl sie die Gefahr kannte.
She knowingly placed the vase on the edge, even though she knew the danger.