The direct opposite; describes an attempt that achieved its aim
文法句型
modifies verb of attempt
用法筆記
Commonly appears before or after the main verb it modifies, typically paired with verbs of effort or pursuit such as try, attempt, apply, search, or seek.
常見錯誤
I tried unsuccessfully to call you but I got through on the first ring.
I tried unsuccessfully to call you
the line was busy all morning.' — 'unsuccessfully' describes an attempt that failed, so the surrounding context must match that outcome.