1 [only before noun]
relating to how a person or situation seems to be, rather than how it really is [≠ inward]:
The economy and outward appearance of the area have changed considerably.
His clenched fist was the only outward sign of his anger.
a journey in which you are travelling away from home
3 [only before noun]
directed towards the outside or away from a place:
the outward flow of oil