When someone is disinclined to communicate, it can be difficult to get through to them. Synonyms for this phrase may include uncommunicative, reticent, reserved, withdrawn, taciturn, or introverted. These words all describe someone who isn't inclined to start conversations or actively participate in them. Other related synonyms might include insular, unforthcoming, or aloof. If someone is disinclined to communicate because they are hesitant to open up, you might also use words like guarded, secretive, or private to describe their demeanor. Regardless of the situation, finding the right words to describe someone's communication style can help you understand them better and find ways to connect.