1. a dog of mixed or unknown breed
2. something that is a mixture of different elements or types

1. of mixed breed, character, or origin

Examples

• The shelter was full of mongrel dogs looking for homes.
• Their pet was a lovable mongrel with floppy ears.
• The architecture was a mongrel style mixing Gothic and modern elements.
• He drove a mongrel car cobbled together from spare parts.
• The mongrel puppy had the friendliest personality.
• Her mongrel accent reflected years of living in different countries.