mutt//mʌt//B2Frequency Level 12ColloquialNounmuttSingularmuttsPlural1A dog of mixed or indeterminate breed; a mongrel.We adopted a mutt from the animal shelter last week.2A stupid or incompetent person (informal, often derogatory).Don't be such a mutt—read the instructions first!SynonymmongrelcurAntonympurebred
