: A best-selling 2019 novel ( Fedeltà ) that explores the complexities of marriage, desire, and the thin line between being faithful to others and being faithful to oneself.

: Based on Missiroli's book, the Italian series Fedeltà (titled Devotion, a Story of Love and Desire in English) premiered in 2022. It follows a Milanese couple whose relationship is tested by suspected infidelities. 3. Business: "Programmi di Fedeltà"

It is frequently contrasted with tradimento (betrayal), serving as a central theme in operatic and classical Italian theater.

At its core, fedeltà is the quality of being faithful. In Italian culture and language, it signifies:

In a commercial sense, fedeltà translates to .

Italian literature and proverbs often highlight the weight of this concept: