Here's what rhymes with polychaetous.
hiatus Words that almost rhyme with polychaetous
pages wages courageous gauges gages stages outrageous pesetas contagious cicadas advantageous disadvantageous basis famous heinous waitress lateness weightless patience gracious greatness spacious nameless valence audacious faithless herbaceous painless sameness shameless shapeless tasteless bailiffs baseless faceless faintness plainness fracas patients payments stainless cadence platelets reagents tenacious abeyance blameless capacious fallacious sebaceous vivacious voracious repayments flirtatious graceless loquacious quaintness salacious straightness statements acquaintance impatience surveillance claimants efficacious fragrance assailants pavements vexatious basements mandamus ungracious vagrants ignoramus mendacious arrangements conveyance attainments replacements ostentatious placements strangeness rearrangements inpatients engagements homeostasis complaisance misstatements displacements complainants emplacements entertainments