lissom
From Longman Dictionary of Contemporary Englishlissomlis‧som, lissome /ˈlɪsəm/ adjective literary THIN PERSONGRACEFULa body that is lissom is thin and graceful SYN litheExamples from the Corpuslissom• the girl's lissom figureOrigin lissom (1700-1800) lithesome “lissom” ((18-20 centuries)), from lithe + -some