paint-by-numbersEnglishOxford Dictionary of Englishpaint-by-numbers /ˌpeɪntˌbʌɪˈnʌmbəz / ▸ adjective (of a child's picture) marked out in advance into sections that are numbered according to the colour to be used. ▪ denoting something mechanical or formulaic rather than imaginative, original, or natural: a paint-by-numbers way to feel or act.