- (of a person人) not sure; uncertain and feeling doubt拿不定主意；不确定；怀疑 synonym dubious
- doubtful (about something) Rose was doubtful about the whole idea.罗斯对整个设想持怀疑态度。🔊🔊
- doubtful (about doing something) He was doubtful about accepting extra work.他拿不定主意是否接受额外工作。🔊🔊
Extra Examples- She was rather doubtful about the wisdom of eating the seafood.她很怀疑吃海鲜是否明智。
- A doubtful look crossed her face.她脸上掠过一丝怀疑的神色。
Topics Doubt, guessing and certaintyc1Oxford Collocations DictionaryverbsadverbprepositionSee full entry - unlikely; not probable未必；难说；不大可能
- doubtful (if…) It's doubtful if this painting is a Picasso.这未必就是毕加索的画。🔊🔊
- doubtful (that…) With her injuries it's doubtful that she'll ever walk again.她多处受伤，今后能否行走还很难说。🔊🔊
- doubtful (whether…) It's doubtful whether the car will last another year.这辆汽车未必还能用上一年。🔊🔊
- doubtful (for something) He is injured and is doubtful for the game tomorrow (= unlikely to play).他受了伤，明天未必能参赛。🔊🔊
Extra Examples- Even if we could go, which is highly doubtful, John wouldn't be able to come with us.即使我们能去 － 这还很没准儿 － 约翰也不能和我们一起去。
- It is doubtful that his words will change the situation much.怀疑他的话会改变情况。
Topics Doubt, guessing and certaintyc1Oxford Collocations DictionaryverbsadverbSee full entry - [not usually before noun] (of a thing事情) uncertain and likely to get worse不明朗，悬而未定（可能变糟）
- At the beginning of the war things were looking very doubtful.战争刚开始时，形势看上去很不明朗。🔊🔊
- [only before noun] of low value; probably not what somebody claims it is or of a quality that you can rely on 低劣的；未必是真的；靠不住的synonym dubious
- This wine is of doubtful quality.这酒的质量有问题。🔊🔊