Takabbur is to consider oneself superior to others in attributes of excellence. There are many kinds of takabbur .
Most kinds are subtle, concealed and difficult to detect.
In a nutshell takabbur is to voluntarily and consciously regard oneself superior to others in religious or mundane excellence in a way which engenders contempt in the heart for others. This is the reality of takabbur and this is haraam . Takabbur consists of two ingredients, viz. Contempt for others . Takabbur not induced voluntarily, but entering the heart involuntarily is not sinful.