Learner's definition of STRIKING
[more striking; most striking]
1 : unusual or extreme in a way that attracts attention
a place of striking [=remarkable] beauty
The poverty of the city is striking.
There is a striking resemblance between the girls.
The building's modern style is/stands in striking contrast to the surrounding neighborhood. [=is very different from the surrounding neighborhood]
2 : very attractive especially in an unusual or interesting way