Fortunate rhymes with:
unfortunate, unfortunate, unfortunate, unfortunate, affectionate, baronet, bicarbonate, cabinet, compassionate, coordinate, definite, diaconate, dispassionate, extortionate, geminate, indefinite, indiscriminate, infinite, innominate, laminate, nominate, nondiscriminate, obstinate, passionate, proportionate, sultanate, unfortunate
Fortunate sounds like:
ferdinand, ferdinanda, fortunato, fourteenth