unfriendly (
http://definr.com/unfriendly)
adj 1: (in combination) not easy to understand or use;
"user-unfriendly" [ant:
friendly]
2: not disposed to friendship or friendliness; "an unfriendly
coldness of manner"; "an unfriendly action to take" [ant:
friendly]
3: lacking warmth of feeling; "a chilly greeting"; "an
unfriendly manner" [syn:
chilly]
4: not friendly; "an unfriendly act of aggression"; "an
inimical critic" [syn:
inimical]
5: very unfavorable to life or growth; "a hostile climate"; "an
uncongenial atmosphere"; "an uncongenial soil"; "the
unfriendly environment at high altitudes" [syn:
hostile,
uncongenial]