Traumatic rhymes with:
posttraumatic, posttraumatic, posttraumatic, aromatic, asthmatic, asymptomatic, automatic, axiomatic, charismatic, cinematic, climatic, diagrammatic, diplomatic, dogmatic, dramatic, emblematic, enigmatic, enzymatic, epigrammatic, idiomatic, informatic, klezmatic, mathematic, matic, mattick, melodramatic, monochromatic, numismatic, phlegmatic, pneumatic, posttraumatic, pragmatic, prismatic, problematic, programmatic, psychosomatic, rheumatic, schematic, semiautomatic, sensormatic, symptomatic, systematic, telematic, thematic, undiplomatic
Traumatic sounds like:
taranto's, terminates, termites, thermedics, thermits, thorndike, thorndike's, thorndikes, thorndyke, thurmond's, torments, tornadic, tornado's, tornadoes, tornados, toronto's, torrents, tournament's, tournaments, tournedos, traumatize, tremendous, trends, trent's, trinity's, trintex, turnouts, tyrants