superior knowledge

Translations
глубокие знания
His superior knowledge of the subject impressed everyone.
Его глубокие знания по предмету впечатлили всех.
Definitions
Superior knowledge refers to a level of understanding or expertise that is significantly higher than that of others, often resulting in an enhanced ability to analyze, interpret, or apply information in a particular field or subject.
Words
knowledge

noun
знание
superior

adjective
превосходный