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