Synonyms for Hostile:

adj.

aggressive (adjective)
warlike, determined, combative, assertive, militant, aggressive, offensive, pushy, domineering, truculent, bellicose, forward, belligerent.
antagonistic, mean (adjective)
cold, contentious, belligerent, pugnacious, bitter, inimical, sour, inhospitable, unfriendly, militant, contrary, scrappy, spiteful, malignant, hateful, rancorous, catty, unfavorable, malevolent, dour, bellicose, nasty, surly, unsociable, warlike, virulent, malicious.
conflicting (adjective)
colliding, warring, tense, antipathetic, dissenting, clashing, rowing, loath, raucous, cacophonous, dissident, rioting, conflicting, harsh, Squabbling, feuding, bickering, disharmonious, differing, brawling, discordant, contentious, dissonant, clamoring, antagonistic.
discordant (adjective)
unmusical, tuneless, inharmonious, unharmonious, quarrelsome, cacophonous, conflicting, discord, jarring, contentious, discordant, dissonant, fricative, differing, disharmonious, unmelodious, antagonistic.
hateful (adjective)
malevolent.
malevolent (adjective)
churlish, hurtful, antagonistic, corrosive, catty, nasty, foul, sullen, baleful, sinister, Black-hearted, rancorous, wicked, treacherous, perfidious, vindictive, malevolent, venomous, evil, virulent, ill-natured, bitter, malicious, mean, vicious, hateful, spiteful, malignant, baneful.
opposed (adjective)
antipathetic.
opposing (adjective)
antagonistic.
sullen (adjective)
cynical, gloomy, cross, dour, sullen, contrary, noncooperative, beetle-browed, grouchy, dissociable, broody, unsociable, Moping, cantankerous, dejected, uncooperative, malevolent, unfriendly, petulant, obstinate, surly, crabby, scowling, melancholy, mean, sulky, fretful, long-faced, grumpy, dark, morose, irascible, grim, glowering, ungenial, sour, glum, moody, frowning.

n.

rebellious, (dead) set against something, resistant, Against. risky, injurious, attack, hazardous, disastrous, unsafe, dangerous, harmful, perilous, damaging, ruinous, combatant. in the field, tactical, paramilitary, militarized, military, pugnacious, martial, embattled, scrappy, front line. face saving, maiden, lame, commemorative, desperate, lamely, attitude, amateur, limp, attempted. love. hostile (noun)
unreconcilable, antagonistic, dirty, truculent, irreconcilable, unfriendly, bitter, ill, aggressive, belligerent, at loggerheads, antipathetic, opponent, inimical, opposing, enemy, head-on, unfavourable, uncongenial, unfavorable, inhospitable, antipathetical.
unfriendly (noun)
cold, icy, aloof, unpleasant, stony.

Other synonyms:

maiden, commemorative, lamely, attempted, limp, face saving, rebellious, resistant. scrappy, pugnacious. lame. desperate, amateur. Against. unfriendly
cold, unpleasant, icy, stony.
Other relevant words:
combatant, resistant, at loggerheads, lamely, love, commemorative, enemy, amateur, perilous, harmful, embattled, desperate, Against, aloof, injurious, ill, limp, opponent, lame, inimical, military, stony, unreconcilable, damaging, disastrous, risky, unfavorable, militarized, unfavourable, uncongenial, ruinous, attack, pugnacious, unpleasant, front line, icy, unsafe, martial, paramilitary, opposing, scrappy, cold, dirty, rebellious, dangerous, inhospitable, antipathetical, maiden, tactical, irreconcilable, attitude, attempted, hazardous, head-on.

Usage examples for hostile

  1. " The roses," Proclus broke in again, " are of course the most welcome to our young friend from such a hand; yet these flowers of the goddess of Beauty have little in common with his art, which is hostile to beauty. – The Complete Historical Romances of Georg Ebers by Georg Ebers
  2. Craven was sitting four places lower down; he had turned the other way and was talking eagerly to some man on his farther side- but the eyes that had met Olva's two minutes before had been hostile – The Prelude to Adventure by Hugh Walpole
  3. I am in no sense hostile to corporations. – Complete State of the Union Addresses from 1790 to the Present by Various