“魁偉”一詞在英文中可以根據具體語境和側重點選擇不同的翻譯：

1. **Impressive** - 強調外貌或氣勢令人印象深刻
- 他身材魁偉，令人過目不忘。
- He has an impressive physique that leaves a lasting impression.

2. **Stately** - 側重莊嚴雄偉的氣質
- 這座魁偉的古老建筑見證了歷史的變遷。
- This stately ancient building has witnessed the changes of history.

3. **Majestic** - 強調威嚴與崇高感
- 魁偉的雪山聳立在云端。
- The majestic snow-capped mountains tower into the clouds.

4. **Towering** - 形容高聳挺拔的形態
- 他魁偉的身影出現在門口。
- His towering figure appeared at the door.

5. **Imposing** - 兼具威嚴與壯觀的特質
- 故宮建筑群規?？齻ィ瑲鈩莼趾?。
- The Forbidden City complex is imposing in scale and magnificent in grandeur.

根據具體語境推薦：
- 形容人體格：impressive/towering figure
- 形容建筑：stately/majestic structure
- 形容自然景觀：majestic/towering mountains
- 綜合氣質：imposing presence

需要根據文本的文學色彩、描述對象及上下文選擇最貼切的譯法。