underprepared
🇺🇸
/ˌʌndərprɪˈperd/
🇬🇧
/ˌʌndəprɪˈpeəd/
not ready enough because you didn't plan or practice enough
The team was underprepared for the big game, and it showed.
这个团队为大比赛准备不足,这显而易见。