B2 noun /ˈpes.ə.mɪst/
Pessimist
悲観主義者
Meaning
a person who tends to see the worst aspect of things or believes that the worst will happen; someone who lacks hope or confidence in the future
Example
Being a pessimist, he always expected the worst outcome.
悲観主義者として、彼はいつも最悪の結果を期待していました。