- 1not clear or definite; difficult to understand or be sure about His motives are unclear. Our plans are unclear at the moment. It is unclear whether there is any damage. Your diagrams are unclear.
Want to learn more?
Find out which words work together and produce more natural sounding English with the Oxford Collocations Dictionary app.
- 2unclear (about something) unclear (as to something) not fully understanding something synonym uncertain I'm unclear about what you want me to do.
Check pronunciation: unclear