optimistic
🇺🇸
/ˌɑːptɪˈmɪstɪk/
🇬🇧
/ˌɒptɪˈmɪstɪk/
adjective
B2
believing that good things will happen
She remains optimistic about her chances of success.
彼女は自分の成功の可能性について依然として楽観的です。
translation
楽観的な