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