formidable
/fɔːˈmɪdəbəl/adjective
So large, strong, or impressive that it inspires respect, awe, or fear.
Example sentence
- “Climbing the mountain's north face is a formidable challenge.”
A compliment wrapped in warning: a formidable opponent deserves both respect and caution. Stress varies; FOR-mid-able and for-MID-able are both heard.