optimist
US /ˈɑːp.tə.mɪst/
UK /ˈɑːp.tə.mɪst/
1.
a person who tends to be hopeful and confident about the future or the success of something
:
•
She's a natural optimist, always seeing the good in every situation.
•
Despite the challenges, he remained an optimist about the project's success.