energisch
energetic / firm
Acting or presenting oneself with great force, determination, and drive.
Sie forderte energisch eine schnelle Lösung für das Problem.
She firmly demanded a quick solution to the problem.

energetic / firm
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energetic / firm
Acting or presenting oneself with great force, determination, and drive.
Sie forderte energisch eine schnelle Lösung für das Problem.
She firmly demanded a quick solution to the problem.

The adjective 'energisch' (energetic / firm) comes directly from the noun 'die Energie' (energy). It describes a person or action that is full of energy and drive.
Mit energischen Schritten ging er auf den Eingang zu.
He walked toward the entrance with energetic steps.
'Energisch' (energetic / firmly) is often used as an adverb to describe a determined action. Common combinations are 'energisch handeln' (to act decisively), 'energisch fordern' (to demand firmly), 'energisch widersprechen' (to object firmly), or 'energisch auftreten' (to present oneself forcefully).
Der Anwalt hat energisch gegen das Urteil protestiert.
The lawyer protested firmly against the verdict.
When 'energisch' (energetic / firm) describes a noun, it often describes people, actions, or the way someone speaks. Typical phrases are 'ein energischer Mensch' (an energetic person), 'eine energische Stimme' (a firm voice), or 'ein energisches Vorgehen' (a decisive approach).
Er ist für seine energische Art bekannt.
He is known for his energetic manner.
certain / specific
'bestimmt' and 'energisch' can both describe how someone presents themselves or speaks. In this use, 'bestimmt' means that someone comes across as clear and firm, without necessarily being loud or forceful. 'energisch' is stronger: it shows more force, determination, and drive. Learners may confuse the words because both fit a confident manner. In practical terms: 'bestimmt' is more suited to calm clarity, while 'energisch' is more suited to a forceful, active manner.

Im Meeting widerspricht er energisch, weil der Plan zu teuer ist.
In the meeting, he objects firmly because the plan is too expensive.
Nach dem Gespräch sagt sie bestimmt, dass sie die Reise nicht absagen will.
After the conversation, she says firmly that she does not want to cancel the trip.