Here's what rhymes with fallacious.
salacious gracious audacious herbaceous sebaceous vivacious voracious spacious efficacious tenacious capacious ungracious flirtatious vexatious loquacious ostentatious mendacious Words that almost rhyme with fallacious
basis races raises laces cases places faces bases phases phrases traces praises vases braces gazes chases glazes mesas spaces fireplaces paraphrases metastases homeostasis famous patience heinous lateness plainness fracas patients greatness courageous surveillance cadence nameless outrageous valence abeyance blameless faithless hiatus painless sameness shameless shapeless waitress bailiffs baseless faceless graceless straightness weightless payments impatience stainless claimants contagious fragrance platelets reagents assailants strangeness tasteless faintness mandamus acquaintance advantageous conveyance attainments pavements placements basements repayments vagrants ignoramus inpatients quaintness arrangements statements complainants complaisance engagements displacements replacements rearrangements emplacements entertainments disadvantageous misstatements