intolerance is the same as lack of tolerance, characteristic that corresponds to lack of understanding or acceptance in relation to something.
A person who acts with intolerance is called a intolerant and, as a rule, presents a behavior of repulsion, disgust and hatred for something that is different.
From a social point of view, intolerant people cannot accept divergent views, ideas or cultures, mainly because they do not understand the diversity of which the world.
See also: meaning of Tolerance.
In the medical field, intolerance represents the difficulty that the human body has in digesting certain non-toxic substances, causing, as a consequence, some allergic reactions in the body. the person who has lactose intolerance, for example, cannot digest this substance because your body lacks lactase, an enzyme responsible for doing this digestion.
THE food intolerance, in general, consists of the adverse reaction that the person has in their body when consuming a certain type of food, such as dairy products, peanuts, shellfish, etc.
See also:meaning of uncompromising.
Religious intolerance
It is the discrimination and prejudice practiced against people and groups that manifest different beliefs or religions. Religious intolerance is the lack of understanding of the right that every human being has to express their religious beliefs.
It is worth remembering that religious intolerance does not only target other religions, but also people who do not follow any type of religious doctrine (atheists and agnostics, for example).
Learn more about Religious intolerance.