This is the 3185th most frequent French word.
redoutable
Formidable or awe-inspiring.
Here, "redoutable" describes the boxer's capability that invokes respect and awe.
Ce boxeur est un adversaire redoutable sur le ring.
This boxer is a formidable opponent in the ring.
In this case, "redoutable" is used to emphasize the impressive and exceptional aspect of her musical talent.
Elle possède un talent redoutable pour la musique.
She has a formidable talent for music.
Here, "redoutable" refers to the challenging and possibly dangerous nature of the situation.