Which of the following is an antonym of "vigor"?

→ Answer: Fatigue.

• Vigor (noun):
English Meaning: Physical strength and good health; energy and enthusiasm.
Bangla Meaning: শারীরিক বা মানসিক শক্তি; তেজ; বলবত্তা; বলিষ্ঠতা।

Synonyms: Vitality (প্রাণশক্তি), Energy (শক্তি), Stamina (দীর্ঘ পরিশ্রমের ক্ষমতা) Strength (শক্তিমত্তা)।
Antonyms: Fatigue (ক্লান্তি), Weakness (দুর্বলতা), Lethargy (আলস্য)।

Example Sentences:
1. He approached the task with great vigor, completing it in record time.
2. The young athlete's vigor was evident in his performance on the field.
3. After a good night's sleep, she felt full of vigor and ready to tackle the day.

Source:
1. Cambridge Dictionary.
2. Merriam-Webster Dictionary.
3. Accessible Dictionary by Bangla Academy.