DOGMATICAL

dogmatic, dogmatical

(adjective) characterized by assertion of unproved or unprovable principles

Source: WordNet® 3.1

Adjective

dogmatical (comparative more dogmatical, superlative most dogmatical)

Alternative form of dogmatic

Source: Wiktionary

Dog*mat"ic, Dog*mat`ic*al, a. Etym: [L. dogmaticus, Gr. dogmatique.]

1. Pertaining to a dogma, or to an established and authorized doctrine or tenet.

2. Asserting a thing positively and authoritatively; positive; magisterial; hence, arrogantly authoritative; overbearing. Critics write in a positive, dogmatic way. Spectator. [They] are as assertive and dogmatical as if they were omniscient. Glanvill. Dogmatic theology. Same as Dogmatics.

Syn.

– Magisterial; arrogant. See Magisterial.

Source: Webster’s Unabridged Dictionary 1913 Edition