formidable

definition: 
Inspiring fear or respect through being impressively large, powerful, intense, or capable:
sentence: 
He is a formidable opponent
difficulty: 
easy
toefl frequency: 
2
toefl classification: 
adverb: 
formidably
adjective: 
adverb sentence: 
It's ridiculous that this President, who has proven himself a formidably talented debater, is scared to answer questions
adjective sentence: 
verb: 
verb sentence: 
noun: 
noun sentence: