Unfriendly (4)
'unfriendly' is the definition.
(I know that unfriendly can be written as hostile)
This is all the clue.
(Other definitions for hostile that I've seen before include "Unkind" , "Bellicose" , "Inimical" , "Antagonistic" , "The soil strangely is unfriendly" .)
(Other definitions for asocial that I've seen before include "Not gregarious" , "cold" , "without friends" , "Inconsiderate to others" , "avoiding contact with others" .)
'unfriendly' is the definition.
(associated in meaning)
This is all the clue.
(Other definitions for inhospitable that I've seen before include "Hostile" , "Difficult to live in" , "Unfriendly" , "Harsh, inimical to life" .)
'unfriendly' is the definition.
(thesaurus)
This is all the clue.
(Other definitions for dour that I've seen before include "Of appearance, harsh and forbidding" , "Stern and severe looking" , "Grim and gloomy-looking" , "Lugubrious, grim" , "Stern-looking, forbidding" .)