outcome vs worst

outcome and worst both are nouns.

Word	Noun	Adjective	Verb	Adverb
outcome	Yes	No	No	No
worst	Yes	Yes	Yes	Yes

As nouns, worst is a hyponym of outcome; that is, worst is a word with a more specific, narrower meaning than outcome:

Other hyponyms of outcome include denouement, deal, decision, decision, aftermath, consequence, separation, sequel, subsequence.

outcome (noun)	worst (noun)
something that results	the weakest effort or poorest achievement one is capable of
a phenomenon that follows and is caused by some previous phenomenon	the greatest damage or wickedness of which one is capable
	the least favorable outcome

outcome (adjective)	worst (adjective)
	(superlative of `bad') most wanting in quality or value or condition

outcome (verb)	worst (verb)
	defeat thoroughly

outcome (adverb)	worst (adverb)
	to the highest degree of inferiority or badness