Synonyms of rotten
1 decayingDictionary • The smell is like rotten eggs.
bad • They bought so much beef that some went bad.
rank • the rank smell of unwashed clothes
foul • foul, polluted water
sour • tiny fridges full of sour milk
mouldy • mouldy bread
fetid • the fetid stench of human waste
putrid • river banks coated with layers of putrid sludge from untreated waste
putrescent (formal) • the smell of putrescent flesh
festy (Australian, slang)
2 crumbling • The bay window is rotten.
crumbling • the building's leaking roofs, broken windows, and crumbling stonework
decayed • Even young children have teeth so decayed they need to be extracted.
3 badDictionary (informal) • What rotten luck!
bad • The closure of the project is bad news for her staff.
unfortunate • the unfortunate incident of the upside-down Canadian flag
unlucky • Argentina's unlucky defeat by Ireland
regrettable • a regrettable incident
deplorable • Many of them work under deplorable conditions.
4 despicableDictionary (informal) • You rotten swine!
despicable • He said it was a despicable crime.
mean • Upstaging the bride was a particularly mean trick.
base • Love has the power to overcome the baser emotions.
dirty • That was a dirty trick to play.
nasty • He's only nasty to me when there's no-one around to see it.
unpleasant • an unpleasant taste of cheap coffee
filthy • `You filthy swine!' Penelope shouted.
vile • a vile and despicable crime
disagreeable • He's a shallow, disagreeable man.
contemptible • Her husband is a contemptible little man.
shitty (taboo, slang)
5 unwellDictionary (informal) • I felt rotten with the flu.
unwell • He felt unwell as he was being driven back to his office.
poorly (informal) • I've just phoned Julie and she's still poorly.
ill • He was seriously ill with pneumonia.
sick • He's very sick.
rough (informal) • The lad is still feeling a bit rough.
crook (Australian, New Zealand, informal) • He admitted to feeling a bit crook.
under the weather (informal) • I'm feeling a bit under the weather today.
ropey or ropy (British, informal)
6 inferiorDictionary (informal) • I thought it was a rotten idea.
inferior • The cassettes were of inferior quality.
poor • The wine is very poor.
unacceptable • She left her husband because of his unacceptable behaviour.
duff (British, informal) • A couple of duff tracks prevent this being a masterpiece.
unsatisfactory • The inspectors said a third of lessons were unsatisfactory.
lousy (slang) • The menu is limited and the food is lousy.
low-grade • undrinkable low-grade wine
substandard • a policy of clearing substandard housing
crummy (slang) • This is a lot better than some of the crummy places I've stayed in.
chickenshit (US, slang)
of a sort or of sorts
ropey or ropy (British, informal)
bodger or bodgie (Australian, slang)
7 corruptDictionary • There was something rotten in our legal system.
corrupt • corrupt police officers who took bribes
immoral • those who think that birth control is immoral
deceitful • The ambassador called the report deceitful and misleading.
untrustworthy • His opponents still say he's a fundamentally untrustworthy figure.
bent (slang) • a bent accountant
crooked (informal) • She might expose his crooked business deals to the authorities.
vicious • a vicious criminal incapable of remorse
treacherous • The President spoke of the treacherous intentions of the enemy.
dishonest • He had become rich by dishonest means.
disloyal • He proved to be an untrustworthy and disloyal ally.
faithless • She decided to divorce her increasingly faithless and unreliable husband.
venal • venal and totally corrupt politicians
dishonourable • He insisted he had done nothing dishonourable.
perfidious (literary) • She says that politicians are a perfidious breed.
8 guiltyDictionary • I feel rotten for having spilt the beans like that.
guilty • When she saw me, she looked extremely guilty.
ashamed • She was ashamed that she looked so shabby.
contrite • He was so contrite that he wrote me a letter of apology.
remorseful • He was genuinely remorseful.
regretful • He gave a regretful smile.
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ashamedIf someone is ashamed, they feel embarrassed or guilty because of something they do or they have done, or because of their appearance.
• She was ashamed that she looked so shabby.
badFood that has gone bad is not suitable to eat because it has started to decay.
• They bought so much beef that some went bad.
badIf you describe a piece of news, an action, or a sign as bad, you mean that it is unlikely to result in benefit or success.
• The closure of the project is bad news for her staff.
Thesaurus for rotten from the Collins English Thesaurus