If you are dogmatic , you are certain that you are right and that everyone else is wrong. Do not, however, be dogmatic or arbitrary in saying what you think. In the first place there was the element of dogmatic teaching. It is as foolish to deny as to assert his existence in a dogmatic and thoughtless manner. Dogmatic definition : relating to or of the nature of a dogma or dogmas or any strong set of principles concerning faith, morals, etc., as those laid down by a church; doctrinal.. See examples of DOGMATIC used in a sentence. 3 meanings: 1. a. (of a statement, opinion, etc) forcibly asserted as if authoritative and unchallengeable b. (of a person).... Click for more definitions. The meaning of DOGMATIC is characterized by or given to the expression of opinions very strongly or positively as if they were facts. How to use dogmatic in a sentence.