tridented /tɹaɪˈdɛntɪd/adjective 1/ˈtɹaɪdəntɪd/ adjective 1 adjective1 •Having three prongs. tridented /ˈtɹaɪdəntɪd/ adjective1 •Bearing a trident.[…]where the tridented Rhadamanthus—(Yama with Brahams, also tridentiferous?) with his three-headed dog Cerberus […] receives them into those unsunned dominions. — 1834