Definition of pessimist
plural pessimists
: a person who is inclined to expect poor outcomes : someone who is given to pessimism
- … such was the success of the first venture that many must now be optimistic where most were pessimists at the beginning of the year and for several years before.
- —Francis Byrne
- For pessimists, the heavens offer a host of doomsday scenarios—an asteroid crashing into Earth or deadly cosmic rays raining down on the planet.
- —R. Cowen
