Synonyms of the word

rotten

• adj. Of perishable items, overridden with bacteria and other infectious agents.
• adj. In a state of decay.
• adj. Cruel, mean or immoral.
• adj. Bad or terrible.
• adv. To an extreme degree.

bad

• adj. Not good; unfavorable; negative.
• adj. Not suitable or fitting.
• adj. Seemingly non-appropriate, in manners, etc.
• adj. Unhealthy.
• adj. Tricky; stressful; unpleasant.
• adj. Evil; wicked.
• adj. Faulty; not functional.
• adj. (of food) Spoiled, rotten, overripe.
• adj. (of breath) Malodorous, foul.
• adj. (informal) Bold and daring.
• adj. (hip-hop slang) good, superlative.
• adj. (of a need or want) Severe, urgent.
• adv. (now colloquial) Badly.
• n. (slang) Error, mistake.
• n. (countable, uncountable, economics) An item (or kind of item) of merchandise with negative value; an unwanted…
• adj. (slang) Fantastic.
• v. (archaic) Alternative past tense of bid. See bade.
• v. (Britain, dialect, transitive) To shell (a walnut).

corrupt

• adj. In a depraved state; debased; perverted; morally degenerate; weak in morals.
• adj. Abounding in errors; not genuine or correct; in an invalid state.
• adj. In a putrid state; spoiled; tainted; vitiated; unsound.
• v. (transitive) To make corrupt; to change from good to bad; to draw away from the right path; to deprave;…
• v. (intransitive) To become putrid or tainted; to putrefy; to rot.
• v. To debase or render impure by alterations or innovations; to falsify.
• v. To waste, spoil, or consume; to make worthless.

crappy

• adj. (chiefly Canada, US, colloquial, mildly vulgar) Of very poor quality; unpleasant; distasteful.
• adj. (chiefly Canada, US, colloquial, mildly vulgar, especially with "feel") Bad, sick, or depressed.
• adj. (chiefly Canada, US, colloquial, mildly vulgar) Covered in crap (faeces/feces).

decayed

• adj. Having undergone decay.
• v. simple past tense and past participle of decay.

icky

• adj. (informal) unpleasantly sticky; yucky; disgusting.
• adj. (informal) excessively sentimental.
• adj. (informal) unwell or upset; in a bad state of mind or health.

lousy

• adj. Remarkably bad; of poor quality, dirty, or underhanded; mean, contemptible.
• adj. Infested with lice.
• adj. (colloquial, usually with with) Filled or packed (with something, usually bad).

putrescent

• adj. becoming putrid; putrefying.

putrid

• adj. Rotting, rotten, being in a state of putrefaction.
• adj. of, relating to, or characteristic of putrefaction, especially having a bad smell, like that of rotting…
• adj. Vile, disgusting.
• adj. morally corrupt.
• adj. totally objectionable.

rotted

• adj. Destroyed or damaged by rot.
• adj. (Newfoundland) Deeply annoyed or irritated.
• v. simple past tense and past participle of rot.

shitty

• adj. (vulgar, colloquial) Very bad; unpleasant; miserable; insignificant.
• adj. (US, vulgar, slang, not comparable) Under the influence of illicit drugs or alcohol; drunk; high.
• adj. (Britain, Australia, New Zealand, vulgar, slang) Annoyed.
• adj. (vulgar) Covered in crap (faeces/feces).
• adj. (informal, vulgar) Of low quality or standard; inferior; not up to par, or failing one's expectations.

stinking

• adj. Having a pungent smell.
• adj. Very bad and undesirable.
• adj. (euphemistic) An intensifier, a minced oath.
• v. present participle of stink.
• n. The emission of a foul smell.

stinky

• adj. Having a strong, unpleasant smell; stinking.
• adj. (informal) Bad, undesirable.

tainted

• adj. Corrupted or filled with imperfections.
• adj. (computer security, of data) Originating from an untrusted source.
• v. simple past tense and past participle of taint.

unsound

• adj. Not sound, particularly.