Externally

[Jason Yan]

in a way that relates to the outside of something, or that is on or comes from the outside:

[Little_Girl]

With reference to the outer surface or structure of something; outside.

[Becky]

The definition of external refers to something or someone that is outside or the outside walls of a space or something that is applied outside. An example of external is a tornado or some other force that can destroy your house from the outside.