unfriendly
adj 1: 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]
[also: unfriendliest, unfriendlier]