Effervescent rhymes with:
adolescent, antidepressant, bessent, convalescent, crescent, depressant, evanescent, fluorescent, incandescent, incessant, iridescent, luminescent, obsolescent, quiescent, suppressant
adolescent, antidepressant, bessent, convalescent, crescent, depressant, evanescent, fluorescent, incandescent, incessant, iridescent, luminescent, obsolescent, quiescent, suppressant