Synonyms for Discouraged:

adj.

bad (adjective)
gloomy.
brokenhearted (adjective)
inconsolable.
crestfallen (adjective)
sad.
dejected (adjective)
anguished, anxious, blue, sullen, melancholy, gloomy, pensive, depressed, heartbroken, sad, mournful, grim, miserable, lachrymose, despondent, overcome, joyless, morose, glum, dolorous, dispirited, woeful, dreary, wistful, downhearted, moody, disheartened, dejected, disconsolate, despairing, plaintive, contemplative.
depressed (adjective)
despondent.
disappointed (adjective)
disappointed, crestfallen, disconcerted, thwarted, disillusioned, disheartened, dashed.
disheartened (adjective)
daunted, dashed, crestfallen, dispirited, depressed, Deterred, blue, pessimistic, dismayed, glum, sad.
hopeless (adjective)
pessimistic, melancholy, depressed, downhearted, miserable, forlorn, dispirited, anguished, dismal, desperate, cheerless, despondent, dejected, bleak, hopeless, despairing, gloomy, disheartened, glum, spiritless, morose.

n.

discontented, crestfallen, dismayed, inconsolable, bitter, disenchanted, dissatisfied, disgruntled. discouraged (noun)
defeated, demoralised, disheartened, pessimistic, frustrated, balked, irresolute, demoralized, baffled.

v.

de-motivated (verb)
impeded, paralyzed, Hampered, de-motivated, Hindered, frustrated, Throttled, stifled, curbed.
disappointed (verb)
dashed, disheartened, disconcerted, thwarted, disillusioned, disappointed.
dissuaded (verb)
depressed, banned, Prevented, Dampened, disinclined, diverted, intimidated, admonished, daunted, Dissuaded, Deflected, Deterred, restrained, disheartened, checked, inhibited, Derailed, Averted, barred, chilled.

Other synonyms:

heartbroken
inconsolable.
Other relevant words:
discontented, disenchanted, bitter, disgruntled, inconsolable, crestfallen, baffled, dissatisfied, balked, demoralised, demoralized, irresolute, dashed, dismayed, defeated.

Usage examples for discouraged

  1. Hartnoll even hinted at a love- affair: but here I discouraged him with a frown, which implied that as seamen we saw that weakness in its proper light. – Merry-Garden and Other Stories by Sir Arthur Thomas Quiller-Couch
  2. " Not likely," he owned, in the same discouraged tone. – Imaginary Interviews by W. D. Howells
  3. Now I was wandering about discouraged and I came to a wood. – Twenty-two Goblins by Unknown