Being disloyal refers to the act of betraying someone's trust or breaking a promise. It can be described as being unfaithful, faithless, false, perfidious, treacherous, untrustworthy or deceptive. Being disloyal can also be referred to as being deceitful, insincere, duplicitous, two-faced, or hypocritical. It is the opposite of being loyal, trustworthy, honest, and dependable. Being disloyal can have serious consequences, including the loss of friendships, relationships, and jobs. It is important to be aware of these synonyms and their implications in order to avoid situations that may lead to being disloyal.