external

3. ADJ : ADJ n

External means happening or existing in the world in general and affecting you in some way.

• a reaction to external events.    
• Such events occur only when the external conditions are favorable.

.... Cobuild

5. Of or relating chiefly to outward appearance; superficial: 

• "An internal sense of righteousness dwindles into an external concern for reputation" A.R. Gurney, Jr.
  

2. (pl) externals.

   a. Outer circumstances.

   b. Outward appearances: 

• was charming as far as the externals went.  
• despite the war, the externals of life in the city remain normal [Latin externus]

.... Am-Heritage

external (noun) - outward features; 

• "he enjoyed the solemn externals of religion"
• characteristic, feature - a prominent attribute or aspect of something; "the map showed roads and other features"; "generosity is one of his best characteristics"

..... http://www.thefreedictionary.com/external