Wrathful \Wrath"ful\, a. 1. Full of wrath; very angry; greatly incensed; ireful; passionate; as, a wrathful man. 2. Springing from, or expressing, wrath; as, a wrathful countenance. ``Wrathful passions.'' --Sprat. Syn: Furious; raging; indignant; resentful. -- {Wrath"ful*ly}, adv. -- {Wrath"ful*ness}, n.