Which word means "vigorous" in English?

The term "vigorous" in English conveys a sense of strength, energy, and robust physical activity. The word "frisch" translates to "fresh" in English, which in certain contexts can imply being lively or energetic, aligning it closely with the concept of vigor. This connection arises because fresh energy or freshness in an activity can evoke the idea of vigor.

In contrast, the other options do not directly pertain to the quality of being vigorous. "Fierce" suggests intense aggression or force but does not necessarily connote the idea of energetic vitality in a general sense. "Sorrow" clearly denotes a feeling of distress and does not relate to the idea of energy or strength. "Feeling" is a broad term that encompasses various emotions or physical sensations, lacking any direct association with vigor. Hence, the choice of "frisch" as meaning "vigorous" captures the essence of vitality and energy.