/ dɒgˈmætɪk; NAmE dɔːg-/ adjective
( disapproving ) being certain that your beliefs are right and that others should accept them, without paying attention to evidence or other opinions :
a dogmatic approach
There is a danger of becoming too dogmatic about teaching methods.
► dog·mat·ic·al·ly / -kli; NAmE / adverb
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WORD ORIGIN
early 17th cent. (as a noun denoting a philosopher or physician of a school based on a priori assumptions): via late Latin from Greek dogmatikos , from dogma , dogmat- , from dokein seem good, think.