redoubtable
definition
worthy of respect or fear due to being powerful or formidable
example
The redoubtable warrior was feared by his enemies and respected by his allies for his unmatched skills in battle.
synonyms
formidablerespectableimposing
word origin — from Middle French 'redoutable', from 'redouter' meaning to fear or dread, which comes from 're-' (intensive prefix) + 'douter' (to doubt)