One of the characteristics of blockchain networks in which users don’t have to know or trust one another for the network to work.
Trustless is a definitive characteristic of the decentralized model of finance that derives system authority from algorithms rather than human beings. These algorithms serve as unbiased mediators during transactions between and among users, such that the users don’t have to know or trust themselves to engage in transactions. As a consequence, blockchain networks are reliable and not subject to user bias and partiality.
The main characteristic of a trustless system is the replacement of a central authority in the form of human agents with algorithms. This is not the case with centralized systems but are the defining attributes of decentralized systems.