In-fi-del-i-ty / infedeleti / n -ties [C;U] 1* (an example or act of) disloyalty or being unfaithful, esp. to one’s marriage partner. 2* (of something copied or reported) not truthful; not close in sound, facts, colour, etc. to the original. 3 Greek band based in Νorthern Greece (Kilkis). Actually, just a bunch of people with a common interest in cheating on music. To be honest, their first dream was to become actors. So, they participated in Giannis Tsitsimis film ‘From Hell With Love’.