worst

adjective, superl. of bad and ill.

1. bad or ill in the highest, greatest, or most extreme degree: the worst person.
2. most faulty, unsatisfactory, or objectionable: the worst paper submitted.
3. most unfavorable or injurious.
4. in the poorest condition: the worst house on the block.
5. most unpleasant, unattractive, or disagreeable: the worst personality I’ve ever known.
6. most lacking in skill; least skilled: the worst typist in the group.