formidable
Definitions
Inspiring fear or respect through being impressively large, powerful, intense, or capable.
Difficult to overcome, deal with, or surmount.
Examples
The mountain climber faced a formidable challenge as she ascended the icy peak.
Despite his small stature, the young athlete proved to be a formidable opponent on the basketball court.
The company has built a formidable reputation for excellence in the technology industry.
Synonyms
intimidating daunting fearsome forbidding impressive challenging menacing