Open English Wordnet
Nouns
(n)worstthe least favorable outcome“the worst that could happen” (n)worstthe 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” (n)worstthe weakest effort or poorest achievement one is capable of“it was the worst he had ever done on a test” Verbs
Adjectives
(a)worst(superlative of ‘bad’) most wanting in quality or value or condition“the worst player on the team”,
“the worst weather of the year” Adverbs
(r)worstto 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”