strikingly can be used as an adverb to describe an action, behavior, or quality that expresses an intense degree of a particular trait or attribute. It implies a greater force or intensity for whatever it is used to modify. It can even be used to describe the magnitude of something that is unexpected or surprising.
1. His speech struck me as strikingly wise.
2. She reacted to his words strikingly quickly.
3. The two of them spoke to each other strikingly differently.
strikingly emphasizes the strength of an emotion, trait, or action, and can be used to draw attention to an unusually intense level of something. It is important to be aware of the context the word is used in, however, as to not use it in the wrong situation.