1. (idiomatic) in a dangerous, hazardous, or delicate situation; at risk

Encyclopedia: On thin ice

• uncommonness
• uncommunicative
• uncommunicativeness
• Uncompahgre Peak
• uncomparable
• uncomparably
• uncompartmented
• uncompassionate
• uncompensated
• uncompetitive
• uncomplaining
• uncomplainingly
• uncomplete
• uncompleted
• uncomplicated
• uncomplimentary
• uncompounded
• uncomprehended
• uncomprehending
• uncomprehendingly
• uncomprehensible
• uncompress
• uncompromising
• uncompromisingly
• unconcealed