modesty
- The state or quality of being moderate in the estimation of one's own abilities, accomplishments, or value.
- Reserve or propriety in speech, dress, or behavior:
- The state of being unostentatious or moderate in size, quantity, or range:
As in:
Dr. P was characterized by excessive humility disproportionate to his high ability and achievements. Everyone was surprised by how modestymodest he was. TFD
Th OP can rewrite my sentence accordingly!