dogmatic

 
Pronunciation: /dɒgˈmatɪk/

adjective

  • inclined to lay down principles as undeniably true: she was not tempted to be dogmatic about what she believed

Derivatives

dogmatically

adverb

Origin:

early 17th century (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- (see dogma)