Here's what rhymes with erculous.
tuberculous Words that almost rhyme with erculous
turbulence merciless nerveless percolates irksomeness urbanise terminus purposeless scurrilous herbalists curvaceous mirthfulness hurtfulness journalists earnestness nervousness permanence surrogates hyperbolas virtuousness tournaments worthlessness appurtenance firmaments permanents impertinence paternalists determinants invertebrates photojournalists