This icon is a part of a collection of Nie lubić flat icons produced by Icons8. Icons follow the guidelines of iOS, Windows, and Android and are designed by a single designer, guaranteeing the consistent quality. Both PNG and vector are available.
A dislike icon is represented with a broken heart. A heart shape has a curvy sides and on the top it is curved downwards, but it is still connected on the bottom. However, a broke heart is shown with a crack in the middle because you usually dislike a person because they have hurt you.