Entry 1 sense Webster, 1913 Rampageous /(răm*pā"jŭs)/ · Ram·pa·geous · IPA /ɹamˈpeɪdʒəs/ 01 a. Characterized by violence and passion; unruly; rampant. 1. Characterized by violence and passion; unruly; rampant.[Prov. or Low] “In the primitive ages of a rampageous antiquity.” — Galt.