dinky /ˈdɪŋki/adjective 2noun 3forms 3 adjective2 •(UK, informal) Tiny and cute; small and attractive.How do you like my hat? That one you had on in church yesterday was real dinky. — 1915 •(US, informal) Tiny and insignificant; small and undesirable.They stayed in a dinky hotel room, but they had a great trip. noun3 •A dinky thing. •(Appalachia) A small mine car; especially, a small coal car. •(slang) A person in a relationship with a double income and no kids. formsdinkies · dinkier · dinkiest