1. (superlative of ‘bad’) most wanting in quality, value or condition
   "the worst player on the team"; "the worst weather of the year"

1. The least favourable outcome
   "the worst that could happen"
    
2. The greatest damage or wickedness of which one is capable
   "the invaders did their worst"; "so pure of heart that his worst is another man's best"
    
3. The weakest effort or poorest achievement one is capable of
   "it was the worst he had ever done on a test"

1. Defeat thoroughly
   "The home team worsted their opponents in the championship game";
   - mop up, whip [informal], rack up

1. To the highest degree of inferiority or badness
   "the worst dressed person present"; "She suffered worst of all"; "schools were the worst hit by government spending cuts"

1. Having undesirable or negative qualities
   "a bad little boy"; "clothes in bad shape"; "a bad cut"; "bad luck"; "the news was very bad"; "the reviews were bad"; "the pay is bad"; "it was a bad light for reading"; "the movie was a bad choice"; "a bad report card"; "his sloppy appearance made a bad impression"
    
2. Below average in quality or performance
   "a bad chess player"; "a bad recital"
    
3. Characterized by wickedness or immorality
   "led a very bad life"
    
4. Serious or severe
   "a bad headache"; "had a bad shock"; "a bad earthquake"; "a bad storm";
   - big
    
5. Not working properly
   "a bad telephone connection";
   - defective
    
6. (of foodstuffs) not in an edible or usable condition
   "bad meat";
   - spoiled, spoilt
    
7. Physically unsound or diseased
   "has a bad back"; "a bad heart"; "bad teeth";
   - unfit, unsound
    
8. Capable of harming
   "bad air"; "smoking is bad for you"
    
9. Feeling or expressing regret or sorrow or a sense of loss over something done or undone
   "he felt bad about breaking the vase";
   - regretful, sorry
    
10. Feeling physical discomfort or pain (‘tough’ is occasionally used colloquially for ‘bad’)
    "my throat feels bad"; "she felt bad all over";
    - tough
     
11. Not financially safe or secure
    "a bad investment";
    - risky, high-risk, speculative
     
12. Not capable of being collected or recovered
    "a bad debt";
    - uncollectible
     
13. Reproduced fraudulently
    "like a bad penny …";
    - forged
     
14. (linguistics) nonstandard
    "so-called bad grammar"

Derived forms: worsting, worsts, worsted

See also: abominable, atrocious, awful, bottom, corked, corky, counterfeit, crummy [informal], deplorable, dire [Brit, informal], disobedient, distressing, dreadful, evil, fearful, frightful, hard, harmful, hopeless, horrible, horrid, icky [informal], ill, imitative, incompetent, inferior, intense, invalid, lamentable, last, last-place, lousy [informal], lowest, malfunctioning, mediocre, naughty, negative, no-good, nonfunctional, nonstandard, painful, penitent, pessimal, pessimum, pitiful, pretty [informal], quality, repentant, rotten [informal], rubber, rubbish [Brit, informal], sad, sorry, stale, stinking [informal], stinky [informal], swingeing [Brit, informal], terrible, tough, uncomfortable, uncool [informal], unfavorable [US], unfavourable [Brit, Cdn], unhealthy, unhip [informal], unskilled, unsound, unspeakable, unsuitable, worse

Type of: attempt, beat, beat out, crush, effort, endeavor [US], endeavour [Brit, Cdn], evil, evilness, final result, ill, outcome, result, resultant, shell [US], trounce, try, vanquish

Antonym: best, good

Encyclopedia: Worst, Martha