Word Study
disgruntled
OXFORD DICTIONARY
disgruntled, adj. discontented; moody; sulky.
Derivative
disgruntlement n.
Etymology
DIS- + gruntle obs. frequent. of GRUNT
THESAURUS
disgruntled
against, annoyed, bad-tempered, beefing, bellyaching, bitching, browned off, complaining, complaintful, con, crabbing, crabby, cranky, croaking, cross, disappointed, disapprobatory, disapproving, discontent, discontented, disenchanted, disillusioned, displeased, dissatisfied, dissenting, envious, exasperated, faultfinding, fed up, griping, grouchy, grousing, growling, grumbling, grumpy, ill-humored, ill-tempered, indignant, irritated, low, malcontent, malcontented, moody, murmuring, muttering, opposed, opposing, out of humor, peeved, peevish, petulant, poor, put out, querulant, querulous, rebellious, resentful, restive, restless, sulky, sullen, testy, turned-off, unaccepting, unaccommodating, unappreciative, unapproving, uncomplimentary, uneasy, unfavorable, unfulfilled, ungratified, unhappy, unsatisfied, vexed, whinyROGET THESAURUS
disgruntled
Disappointment
N disappointment, blighted hope, balk, blow, anticlimax, slip 'twixt cup and lip, nonfulfillment of one's hopes, sad disappointment, bitter disappointment, trick of fortune, afterclap, false expectation, vain expectation, miscalculation, fool's paradise, much cry and little wool, disappointed, disconcerted, aghast, disgruntled, out of one's reckoning, the mountain labored and brought forth a mouse, parturiunt montes, nascitur ridiculus mus, diis aliter visum, the bubble burst, one's countenance falling.For further exploring for "disgruntled" in Webster Dictionary Online