Definition of Worst

Noun

• the weakest effort or poorest achievement one is capable of
  "it was the worst he had ever done on a test"
  
• 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"
  
• the least favorable outcome
  "the worst that could happen"
  

Verb

• defeat thoroughly
  "He mopped up the floor with his opponents"
  pip - mop up whip - rack up

Adjective

• (superlative of `bad') most wanting in quality or value or condition
  "the worst player on the team"
  "the worst weather of the year"
  

Adverb

• to the highest degree of inferiority or badness
  "She suffered worst of all"
  "schools were the worst hit by government spending cuts"
  "the worst dressed person present"
  

• Scrabble® score of the worst (8)
• Word Chums® score of the worst (9)
• Words With Friends® score of the worst (8)