Strenuous rhymes with:
disingenuous, ingenuous, continuous, disingenuous, ingenuous, ambiguous, conspicuous, contiguous, continuous, disingenuous, ingenuous, innocuous, vacuous
Strenuous sounds like:
saturn's, saturns, sauternes, scattering, sequestering, shattering, shoestring, shuddering, shuttering, sidearms, sistrunk, southern's, squadrons, staring, starnes, starns, starring, stearns, stearns's, steering, stern's, sternness, sterns, stirring, stirrings, storing, storm's, stormes, storminess, storming, storms, straining, strains, strang, strange, strangis, strangwayes, stransky, straying, streaming, streams, streng, string, strings, stringy, stronach, strong, strumming, strums, strung, strunk, strunk's, sturmans, stuttering, suturing