Unfriendly

a.	1.	Not friendly; not kind or benevolent; hostile; as, an unfriendly neighbor.
	2.	Not favorable; not adapted to promote or support any object; as, weather unfriendly to health.

Adj.	1.	unfriendly - not easy to understand or use; "user-unfriendly" Antonyms: friendly - easy to understand or use; "user-friendly computers"; "a consumer-friendly policy"; "a reader-friendly novel"
	2.	unfriendly - not disposed to friendship or friendliness; "an unfriendly coldness of manner"; "an unfriendly action to take" Antonyms: friendly - characteristic of or befitting a friend; "friendly advice"; "a friendly neighborhood"; "the only friendly person here"; "a friendly host and hostess"
	3.	unfriendly - lacking warmth of feeling; "a chilly greeting"; "an unfriendly manner" Synonyms: chilly
	4.	unfriendly - not friendly; "an unfriendly act of aggression"; "an inimical critic" Synonyms: inimical
	5.	unfriendly - very unfavorable to life or growth; "a hostile climate"; "an uncongenial atmosphere"; "an uncongenial soil"; "the unfriendly environment at high altitudes" Synonyms: uncongenial, hostile

adversary, adversative, adverse, aggressive, alien, allergic, antagonistic, anti, antipathetic, antithetic, autistic, averse, bashful, battling, bellicose, belligerent, bloodthirsty, bloody, bloody-minded, chauvinist, chauvinistic, chill, chilly, clashing, close, closed, cold, combative, competitive, con, conflicting, contentious, contradictory, contrary, cool, counter, cross, disaccordant, disaffected, disenchanted, disinclined, displeased, dissentient, dissociable, enemy, ferocious, fierce, fighting, fractious, frosty, full of fight, hawkish, hostile, icy, ill, incompatible, inhospitable, inimical, insociable, jingo, jingoish, jingoist, jingoistic, martial, militant, militaristic, military, mopey, mopish, morose, negative, noncooperative, nongregarious, not charmed, obstinate, offensive, opponent, opposed, opposing, opposite, oppositional, oppositive, oppugnant, overthwart, perverse, pugnacious, put off, quarrelsome, recalcitrant, refractory, repugnant, rival, saber-rattling, sanguinary, sanguineous, savage, scrappy, self-contained, self-sufficient, snug, socially incompatible, soldierlike, soldierly, strained, sullen, tense, trigger-happy, truculent, unamiable, unamicable, unclubbable, uncommunicative, uncompanionable, uncongenial, uncooperative, uncordial, unfavorable, ungenial, ungracious, unharmonious, unhospitable, unneighborly, unpacific, unpeaceable, unpeaceful, unpropitious, unreceptive, unsociable, unsocial, warlike, warmongering, warring