Synonyms for Disagreeable:

adj.

all (adjective)
unsympathetic.
bad (adjective)
unpleasant.
bad-tempered, irritable (adjective)
difficult, obnoxious, peevish, ugly, cantankerous, cross, petulant, waspish, unpleasant, rude, surly, nasty, offensive, grouchy, snappy, querulous.
disagreeable (adjective)
disgusting, repulsive, bothersome, unpalatable, unpleasant, obnoxious, distasteful, nasty, offensive.
disgusting, offensive (adjective)
bad, unpalatable, upsetting, pain, repulsive, repugnant, distasteful, woeful, displeasing, awful, annoying, repellent, objectionable, bothersome.
ill-tempered (adjective)
crabbed.
objectionable (adjective)
objectionable.
offensive (adjective)
offensive.
painful (adjective)
biting, cruel, troublesome, bitter, acute, agonizing, harrowing, offensive, distressful, grievous, cutting, arduous, oppressive, annoying, miserable, smarting, severe, Irksome, aching, odious, painful, chafing, uncomfortable, trying, throbbing, wrenching, tormenting, insufferable, inflaming, stabbing, hurtful, woeful, aggravating, Gnawing, crushing, piercing, bothersome, horrendous, burdensome, anguishing, irritating, stinging, excruciating, Besetting, Cramping, unpleasant, Torturing., withering, sore, unbearable, grueling.
ugly (adjective)
inelegant, unattractive, plain, repellent, homely, displeasing, repulsive, ugly, unappealing, repugnant, unpleasant, unpleasing, grotesque, disfigured, Ill-looking, odious, unsightly, shapeless, abhorrent, undesirable, unlovely, unaesthetic, hideous.
vexatious (adjective)
plaguy.

n.

difficult, impertinent, ill-mannered, irritable, rude, impudent, discourteous, impolite, smart, insolent, grouchy. bleak, hard, disturbing, objectionable, awful, upsetting. cantankerous, bad-tempered, attitude, querulous, irascible, peevish, grumpy, snappish, mean, snappy, cross, waspish, fretful, cranky, testy, petulant, ill-tempered, crabbed, crabby, surly. disagreeable (noun)
irritating, teasing, nerve-wracking, nettlesome, incompatible, bothersome, pestering, plaguey, stressful, pesky, unsweet, unsympathetic, galling, annoying, vexing, nerve-racking, vexatious, pestiferous, abrasive, trying, uncongenial, plaguy, harsh.

Other synonyms:

bad-tempered, yucky, objectionable, awful. cranky, snappish, grumpy, waspish, irritable, fretful, rude, crabby, petulant, ill-tempered, icky, grouchy, querulous, irascible, cantankerous. bleak, testy, crabbed, bad. peevish. snappy. hard. disquieting
disturbing.
vicious
mean.
Other relevant words:
difficult, smart, incompatible, rude, cranky, unsweet, pain, snappish, cantankerous, objectionable, galling, grumpy, cross, fretful, pestering, peevish, discourteous, unsympathetic, plaguey, upsetting, grouchy, bad, surly, disturbing, hard, waspish, mean, icky, bleak, attitude, nerve-wracking, snappy, querulous, yucky, uncongenial, teasing, pesky, vexing, impolite, ill-mannered, harsh, crabbed, irascible, nerve-racking, awful, bad-tempered, testy, stressful, abrasive, impertinent, vexatious, nettlesome, plaguy, ill-tempered, impudent, insolent, petulant, irritable, crabby, pestiferous.

Usage examples for disagreeable

  1. But in the bearing of those who were actually present there was no hint that the work in which they were to be engaged had about it any of the elements of the disagreeable – A Second Coming by Richard Marsh
  2. Perhaps I have touched on a subject which is disagreeable to you?" – Blind Love by Wilkie Collins
  3. Pray, for Heaven's sake, tackle him yourself- a disagreeable duty! – Ten Thousand a-Year. Volume 1. by Samuel Warren