dubious
/ˈdjuːbjəs/adjective
1
- hesitating or doubting犹豫不决的; 疑惑的, 怀疑的：
Alex looked dubious, but complied.
亚历克斯看上去有些疑惑, 但仍服从了。
2
- not to be relied upon; suspect不可靠的; 可疑的：
extremely dubious assumptions.
极不可靠的假设。
2.1
- morally suspect道德上可疑的：
timeshare has been brought into disrepute by dubious sales methods.
分时享用度假住房这一做法因其成问题的销售方法而声名狼藉。
2.2
- of questionable value价值有问题的：
he holds the dubious distinction of being relegated with every club he has played for.
他有一个其价值令人生疑的特点, 那就是：他到哪个俱乐部踢球, 那个俱乐部就得降级。
派生词
dubiously
adverbdubiousness
noun词源
mid 16th cent. (in sense 2)： from Latin dubiosus, from dubium'a doubt', neuter of dubius 'doubtful'.