a. 易怒的, 心地不良的

[ adj ]
having an irritable and unpleasant disposition
<adj.all>

Ill-natured \Ill`-na"tured\, a.
1. Of habitual bad temper; having an unpleasant disposition;
surly; disagreeable; cross; peevish; fractious; crabbed;
-- of people; as, an ill-natured person; an ill-natured
disagreeable old man. Opposite of {good-natured}.
[Narrower terms: {argumentative, contentious,
disputatious, disputative, litigious : {atrabilious,
bilious, dyspeptic, liverish : {bristly, prickly,
snappish, splenetic, waspish : {cantankerous, crotchety,
ornery : {choleric, irascible, hotheaded, hot-headed,
hot-tempered, quick-tempered, short-tempered : {crabbed,
crabby, cross, fussy, fussbudgety, grouchy, grumpy,
bad-tempered, ill-tempered}: {cranky, fractious,
irritable, peevish, peckish, pettish, petulant, testy,
tetchy, techy : {crusty, curmudgeonly, gruff, ill-humored,
ill-humoured}: {dour, glowering, glum, moody, morose,
saturnine, sour, sullen : {feisty, touchy : {huffish,
sulky}: {misanthropic, misanthropical : {misogynous :
{shirty, snorty ill-tempered or annoyed)}: {shrewish,
nagging, vixenish : {surly, ugly ] Also See: {unpleasant}.
[1913 Webster + WordNet 1.5]

2. Dictated by, or indicating, ill nature; spiteful. ``The
ill-natured task refuse.'' --Addison.

3. Intractable; not yielding to culture. [R.] ``Ill-natured
land.'' --J. Philips.

3. not to one's liking; unpleasant; disagreeable. Opposite of
{agreeable}. [WordNet sense 2] [Narrower terms: {annoying,
galling, chafing, irritating, nettlesome, pesky,
pestiferous, pestilent, plaguy, plaguey, teasing,
vexatious, vexing}; {nerve-racking, nerve-wracking,
stressful, trying ]

Syn: disagreeable.
[WordNet 1.5] -- {Ill`-na"tured*ly}, adv. --
{Ill`-na"tured*ness}, n.