ill-de·fined
adjective/ˌɪl dɪˈfaɪnd/
/ˌɪl dɪˈfaɪnd/
- not clearly described
不清楚的；含混的 - an ill-defined role
不明确的角色 - The precise aims of the committee remain ill-defined.
委员会的确切目标仍不清楚。
- an ill-defined role
- not clearly marked or easy to see
轮廓不清的；不明显的 - an ill-defined path
若隐若现的小径
- an ill-defined path