Here's what rhymes with souciant.
insouciant Words that almost rhyme with souciant
student fluent coolant souvent loosest movement unit prudent mutant inducement newest tumult adjuvant fewest mouvement rudest truant coolest smoothest soonest annuitant shrewdest duellist hugest lewdest sunhat nudest pursuant pollutant crudest diluent bluest cruelest entombment rootlet obtusest gruesomest amusement recruitment translucent imprudent impudent confluent disputant intuit oculist canoeist bassoonist improvement cartoonist profusest quadruplet