Redoubtable (adjective)

1. Impressive or awe-inspiring in a formidable or daunting manner.
2. Intimidating or frightening due to one's power or abilities.
3. Worthy of respect or admiration due to one's abilities or achievements.

Origin:

The word 'redoubtable' is derived from the french word 'redoutable', which means 'formidable, daunting, or impressive'. the word has its origins in the military, where it was used to describe formidable fortifications or defenses.

Examples:

1. The redoubtable mountain climber had reached the summit of many of the world's tallest peaks.
2. The redoubtable army was feared by its enemies due to its strength and skills.
3. The redoubtable chess player defeated all challengers in the tournament.
4. The redoubtable CEO was known for her intelligence and leadership skills.
5. The redoubtable scientist made several groundbreaking discoveries in the field of physics.