Vigeant rhymes with:
migent, agent, astringent, bagent, cogent, contingent, convergent, detergent, diligent, divergent, emergent, exigent, indigent, indulgent, insurgent, intelligent, intransigent, largent, legent, migent, negligent, neugent, nugent, pageant, pungent, reagent, regent, resurgent, sargeant, sargent, sergeant, sergent, stringent, tangent, urgent
Vigeant sounds like:
vacant, vacanti, vaccinate, vaccinated, vegemite, vescinoid, vicente, vicinity, vicomte, vignette, visconti, viscount