Intellectualization: avoiding unacceptable emotions or depth of intimacy by focusing on their intellectual aspects. Concentrating on the intellectual components of the situation to distance yourself from the anxiety-provoking emotions associated with these situations.
Intellectualization is a transition to reason, where the person avoids uncomfortable emotions by focusing on facts and logic. The situation is treated as an interesting problem that engages the person on a rational basis, whilst the emotional aspects are completely ignored as being irrelevant.
In psychology, intellectualization is a Ego Defense Mechanism where reasoning is used to block confrontation with an unconscious conflict and its associated emotional stress – where thinking is used to avoid feelings. It involves removing one's self, emotionally, from a stressful event. Intellectualization may accompany, but is different from, rationalization, the pseudo-rational justification of irrational acts. 
Ego Defense Mechanism
As one learns how to refocus one’s thoughts, one prevents overwhelming states of emotion from triggering impulsive behaviors and angry reactions. As one develops strong impulse control they are learning a form of ego discipline through applied patience. If we check in and find that we do not like what we may be feeling, we can learn better the reasons for that by further shifting into the observer mode. In our community, we call that process of observing as shifting from identifying with a thought or feeling by moving ourselves into the compassionate witness. As a Compassionate Witness we have no judgment of thoughts or feelings, we hold no judgment of what we are observing in the external, we only observe those thoughts and feelings in our self and others. When we can fully observe through our own Compassionate Witness, we then become neutral and centered. Then, we can immediately find relief from our inner anxiety, fears and a host of other thought distortions. This process is key to shifting Ego Defense Mechanisms, thought addiction tendency and releasing the anxiety or fear of feeling emotional depth or pain. By continually using an ego defense mechanism to avoid facing the source causation of the anxiety or deeply rooted fear, (which is unresolved pain or trauma) we are only perpetuating the mental looping which uses denial of the truth in order to avoid feeling pain or discomfort.