Use 'formidably' to express awe or respect for the extreme level of someone's ability or quality. The champion chess player was formidably strategic.
Pro Tip 2/3
Implies Challenge
Suggests that something is difficult to overcome due to its impressive strength or skill. The other team was formidably skilled, but we were prepared.
Pro Tip 3/3
Intensity Emphasis
'Formidably' intensifies the characteristic it describes, indicating it is exceptional or extreme. Her knowledge on the subject was formidably extensive.