Từ trái nghĩa của highly improved

backward nonprogressive primitive unprogressive low outdated underdeveloped undeveloped rudimentary unsophisticated worsened antiquated lower old-fashioned retarded backwards rude benighted third world antediluvian out of date uncivilized uncivilised fogyish lagging parachronistic unevolved old traditional traditionalistic behind-the-times old-line old-school outmoded dated retrograde out-of-date past ancient archaic passé obsolete early oldfangled coarse rough inexact uncultured inelegant unrefined sturdy unpolished ungenteel unfashionable barbaric strong tasteless imprecise boorish philistine unstylish dowdy robust unhandsome graceless inaccurate styleless barbarous unladylike common unmannerly ill-bred ungentlemanly poor undiscriminating harsh corrupt uncritical polluted dirtied

sick ill injured ailing unwell wounded pale fractured hurt indisposed unhealthy weak broken bruised crook debilitated disabled incapacitated infected infirm peaked peaky bedridden feeble frail rickety sickened weakened damaged diseased worsened kept

unchanged unqualified continued held kept maintained preserved retained sustained

weaker feebler lamer less effective less effectual less efficacious uselesser less efficient more futile more hopeless more inadequate more ineffective more ineffectual more inefficient more inept more unworkable more counterproductive more dysfunctional more fruitless more impotent more impracticable more impractical more meaningless more nonfunctional more pathetic more pointless more powerless more purposeless more abortive more inutile more limited more unfruitful more unproductive more unserviceable more worthless more unsuccessful

unmodified improper inappropriate unfitting unseemly unsuitable

degenerated deteriorated preserved

drained enervate enervated exhausted knackered weakened damaged incapacitated feeble debilitated weak fragile depleted listless devitalized declining impaired spiritless fatigued sapped deteriorated demoralised spent tired enfeebled sickly run-down languid languishing dispirited limp emasculated vitiated dampened languorous weary disheartened deadened demoralized washed out

stable constant firm consistent permanent resolute set enduring established fast fixed immutable invariable lasting reliable steady sure durable final rigid secure settled sound staunch steadfast unchanged unchanging uniform unmodified unvaried anchored certain definite immovable inflexible persevering persistent prevailing resolved secured solid stabilised stabilized stalwart stationary sturdy unalterable unbending unchangeable undeviating unflinching unmoving unshakable unvarying unwavering unyielding kept unfluctuating unqualified unshaken deep-rooted long-standing set in stone solid as a rock staying put well-founded

undeveloped raw rudimentary basic developing immature underdeveloped young embryonic green low unevolved unrefined basal half-baked lower

decreased diminished reduced downsized lessened lowered weakened abridged curtailed decremented abated ceased shortened shrank shrunk compressed condensed contracted decelerated depleted destroyed dropped halted hindered narrowed prevented restricted slowed undermined deflated degraded demolished discouraged repressed stopped abbreviated constricted cut cut back de-escalated divided felled lost plummeted plummetted receded retrenched sank hurt minified played down razed retreated subtracted took back subtracted from went down

declined dropped fell collapsed crashed degenerated depreciated deteriorated diminished disintegrated dwindled faded failed flagged lessened receded sagged shrank shrunk descended dove plummeted plummetted slid tumbled lowered plunged relinquished sank slipped slumped toppled dived nose-dived caved in keeled over went down jumped down

worsened damaged destroyed degraded deteriorated diminished neglected defaced degenerated disfigured impaired inflamed lowered marred spoiled spoilt tarnished wrecked bastardised bastardized blemished blighted contaminated corroded debauched decayed decimated declined decreased depressed disintegrated disorganised disorganized eroded flawed loused up reduced retrograded retrogressed rotted ruinated sank vandalised vandalized vitiated decomposed descended made something worse

regressed diminished retrogressed weakened curtailed declined stunted devolved lessened retrograded abated arrested impaired impeded inhibited lowered mitigated repressed restricted worsened backslid backslided cramped curbed deteriorated dwindled checked debased debilitated devitalized enervated enfeebled held back hurt reversed reverted slowed down slowed up degenerated

impaired deteriorated ruined diminished disimproved decreased hindered receded reduced lessened lowered weakened compromised debased minimised minimized undermined worsened abated curbed nerfed attenuated blunted dulled impeded restricted sapped shortened unstrengthened broke down broken down scaled down

diminished lessened regressed dropped faded reduced waned declined fell felled fallen tapered dwindled failed remitted sank sunk sunken stalled abated destabilised destabilized idled plummeted plummetted plunged slackened slumped attenuated backslid backslided backslidden discontinued relented relent stultified trammelled trammeled wore worn came to a halt come to a halt ground to a halt set back toppled dropped off fell away fallen away went out of shape gone out of shape went to the dogs gone to the dogs hit the skids lost ground lost headway tailed off tapered off

persisted remained continued held lasted stayed lingered abode abided endured persevered bode bided bidden perdured carried on held up kept on

worsened deteriorated declined degraded degenerated depreciated got worse gotten worse went downhill gone downhill went from bad to worse gone from bad to worse became worse become worse made matters worse took a turn for the worse taken a turn for the worse fed the fire rubbed salt in a wound added insult to injury fanned the flames

deteriorated diminished declined exacerbated ailed dwindled sickened wasted wasted away wilted withered worsened atrophied debilitated enervated regressed waned weakened degenerated degraded dropped failed retrograded retrogressed slipped crumbled sank sunk sunken decayed languished got worse gotten worse went downhill gone downhill

broke brake broken damaged scratched smashed split wrecked crushed ruined spoiled spoilt destroyed dismantled shattered tore teared torn demolished marred ravaged scuppered totalled totaled upset defaced disfeatured felled fell flawed impaired leveled levelled razed vitiated wasted wracked blasted blighted crashed defiled devastated endamaged mangled undid undone dashed decimated torpedoed trashed broke apart broken apart broke up broken up

regressed relapsed lapsed broke brake broken reverted worsened dropped fell felled fallen retreated returned gave oneself over given oneself over gave way given way receded retroceded succumbed surrendered collapsed descended gave in given in recidivated retrograded retrogressed rolled back slipped back yielded yold yolden bent bended

highly infectious highly infective high-lying highly leveraged highly priced highly-processed food highly-flavoured highly favourable highly-developed highly developed highly contagious highly complimentary