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