regnant

Adjective

Synonyms: reigning ruling

WordNet 3.0

Regnant \Reg"nant\ (-nant), a. [L. regnans, -antis, p. pr. of regnare to reign: cf. F r['e]gnant. See Reign.]

1.Exercising regal authority; reigning; as, a queen regnant. [1913 Webster]

2.Having the chief power; ruling; predominant; prevalent. "A traitor to the vices regnant." --Swift. [1913 Webster]