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Words that Rhyme with inefficacious
3 syllables
- audacious
- capacious
- cretaceous
- fallacious
- flirtatious
- herbaceous
- horatius
- loquacious
- mendacious
- micaceous
- predaceous
- predacious
- sagacious
- salacious
- sebaceous
- tenacious
- testaceous
- tuffaceous
- ungracious
- veracious
- vexatious
- vivacious
- voracious
- chartaceous
- crustaceous
- curvaceous
- fugacious
- lardaceous
- setaceous
- tufaceous
- vinaceous
- araceous
- autecious
- bibacious
- bixaceous
- bodacious
- boldacious
- bryaceous
- bulbaceous
- buxaceous
- byssaceous
- cactaceous
- cannaceous
- ceraceous
- cetaceous
- characeous
- chylaceous
- cistaceous
- clathraceous
- coccaceous
- cornaceous
- cumaceous
- curvacious
- dipsaceous
- disgracious
- drupaceous
- edacious
- fabaceous
- fagaceous
- feracious
- fucaceous
- furacious
- gemmaceous
- glumaceous
- gnetaceous
- hellacious
- hypnaceous
- ignatius
- juncaceous
- lauraceous
- lemnaceous
- leskeaceous
- lilaceous
- linaceous
- loasaceous
- lutaceous
- lythraceous
- malvaceous
- marlaceous
- menthaceous
- monecious
- moraceous
- mordacious
- mortacious
- musaceous
- myrtaceous
- nugacious
- ochnaceous
- ostraceous
- ostreaceous
- palmaceous
- pennaceous
- perlaceous
- phallaceous
- phocaceous
- pinaceous
- plumaceous
- pomaceous
- porraceous
- procacious
- psittaceous
- psydracious
- pultaceous
- rhamnaceous
- rosaceous
- rutaceous
- sabiaceous
- schorlaceous
- sequacious
- solacious
- spathaceous
- sphagnaceous
- spinaceous
- splachnaceous
- splendaceous
- splendacious
- splendatious
- squamaceous
- stilbaceous
- taccaceous
- taxaceous
- terraceous
- theaceous
- tophaceous
- truttaceous
- typhaceous
- ulmaceous
- ulvaceous
- usneaceous
- vitaceous
4 syllables
- arenaceous
- argillaceous
- carbonaceous
- contumacious
- coriaceous
- efficacious
- farinaceous
- foliaceous
- membranaceous
- ochraceous
- olivaceous
- ostentatious
- perspicacious
- proteinaceous
- violaceous
- alutaceous
- amylaceous
- disputatious
- ericaceous
- furfuraceous
- gallinaceous
- saponaceous
- scoriaceous
- solanaceous
- acanthaceous
- aceraceous
- acinaceous
- aesculaceous
- affectatious
- aizoaceous
- alliaceous
- alsinaceous
- ambrosiaceous
- amentaceous
- ammiaceous
- ampullaceous
- annonaceous
- arboraceous
- asteraceous
- atropaceous
- bangiaceous
- basellaceous
- batidaceous
- begoniaceous
- betulaceous
- boletaceous
- bonafatius
- brassicaceous
- burseraceous
- butomaceous
- butyraceous
- camphoraceous
- candolleaceous
- carduaceous
- caricaceous
- caulerpaceous
- celastraceous
- chloranthaceous
- cineraceous
- codiaceous
- columbaceous
- combretaceous
- connaraceous
- corollaceous
- corylaceous
- crassulaceous
- cycadaceous
- cyclanthaceous
- cylindraceous
- cynaraceous
- cyperaceous
- cyrillaceous
- datiscaceous
- dematiaceous
- dipsacaceous
- dromiaceous
- droseraceous
- ebenaceous
- empetraceous
- erinaceous
- frumentaceous
- gentianaceous
- gesneraceous
- ginkgoaceous
- gordiaceous
- gorgonaceous
- graminaceous
- grimmiaceous
- helvellaceous
- hydnoraceous
- incapacious
- iridaceous
- juglandaceous
- lamiaceous
- lennoaceous
- liliaceous
- limnanthaceous
- magnoliaceous
- marantaceous
- marmoraceous
- marsileaceous
- melanthaceous
- meliaceous
- menyanthaceous
- miliaceous
- mimosaceous
- miniaceous
- moringaceous
- mucoraceous
- myricaceous
- myrsinaceous
- mytilaceous
- nectriaceous
- nostocaceous
- nymphaeaceous
- olacaceous
- oleaceous
- oleraceous
- onagraceous
- oocystaceous
- orchidaceous
- osmundaceous
- paleaceous
- palmellaceous
- pandanaceous
- papyraceous
- pectinaceous
- penaeaceous
- pervicacious
- philydraceous
- piperaceous
- platanaceous
- plumulaceous
- pretophaceous
- primulaceous
- proteaceous
- psilotaceous
- pyritaceous
- pyrolaceous
- pythiaceous
- ramentaceous
- rapateaceous
- resedaceous
- resinaceous
- restionaceous
- rubiaceous
- saint eustatius
- saint ignatius
- salsolaceous
- santalaceous
- sapindaceous
- sapotaceous
- sarmentaceous
- saururaceous
- schizaeaceous
- scolopaceous
- siliquaceous
- siphonaceous
- smilacaceous
- solenaceous
- sphaeriaceous
- staphyleaceous
- stemonaceous
- stercoraceous
- strobilaceous
- styracaceous
- taphrinaceous
- tiliaceous
- tilletiaceous
- trepidacious
- trepidatious
- tuberaceous
- turneraceous
- unveracious
- urticaceous
- veneraceous
- verbenaceous
- volvocaceous
- xyridaceous
5 syllables
- diatomaceous
- unostentatious
- subcoriaceous
- achariaceous
- altingiaceous
- amygdalaceous
- andromonecious
- apiaceous
- apocynaceous
- araliaceous
- arundinaceous
- asclepiadaceous
- aurantiaceous
- balsaminaceous
- bennettitaceous
- berberidaceous
- bignoniaceous
- boraginaceous
- bromeliaceous
- burmanniaceous
- callitrichaceous
- calycanthaceous
- calyceraceous
- campanulaceous
- capparidaceous
- ceramiaceous
- chaetophoraceous
- chlorophyllaceous
- chroococcaceous
- chytridiaceous
- cichoriaceous
- cladoniaceous
- cladophoraceous
- clavariaceous
- commelinaceous
- convolvulaceous
- corallinaceous
- cordaitaceous
- cucurbitaceous
- cunoniaceous
- cutleriaceous
- cyatheaceous
- cynocrambaceous
- dasycladaceous
- desmidiaceous
- dictyotaceous
- dilleniaceous
- dothideaceous
- ectocarpaceous
- elachistaceous
- elaeagnaceous
- elatinaceous
- epacridaceous
- equisetaceous
- erysiphaceous
- eucryphiaceous
- fissidentaceous
- flacourtiaceous
- frankeniaceous
- fumariaceous
- funariaceous
- geraniaceous
- gesneriaceous
- gyrophoraceous
- haemodoraceous
- helianthaceous
- hernandiaceous
- humiriaceous
- hydromicaceous
- hydrophyllaceous
- icacinaceous
- lecanoraceous
- lecideaceous
- lecythidaceous
- lobeliaceous
- loganiaceous
- marattiaceous
- marcgraviaceous
- marchantiaceous
- margaritaceous
- martyniaceous
- melastomaceous
- melianthaceous
- menispermaceous
- mucedinaceous
- myoporaceous
- myristicaceous
- naiadaceous
- nyctaginaceous
- opiliaceous
- orobanchaceous
- oxalidaceous
- papaveraceous
- parmeliaceous
- passifloraceous
- pedaliaceous
- pennatulaceous
- phytolaccaceous
- pilosebaceous
- pittosporaceous
- plantaginaceous
- plumbaginaceous
- podostemaceous
- polygalaceous
- polygonaceous
- polyporaceous
- polytrichaceous
- portulacaceous
- pucciniaceous
- rafflesiaceous
- ranunculaceous
- rhizophoraceous
- rhodomelaceous
- salvadoraceous
- saxifragaceous
- semicrustaceous
- semiplumaceous
- simaroubaceous
- sphaeropsidaceous
- sterculiaceous
- stylidiaceous
- tamaricaceous
- taxodiaceous
- theophrastaceous
- tovariaceous
- tremandraceous
- trentepohliaceous
- trigoniaceous
- trochodendraceous
- tropaeolaceous
- ulotrichaceous
- vacciniaceous
- valoniaceous
- vaucheriaceous
- velloziaceous
- vochysiaceous
- zingiberaceous
- zygnemataceous
- zygophyllaceous
6 syllables
- papilionaceous
- amaryllidaceous
- anacardiaceous
- aquifoliaceous
- bacillariaceous
- balanophoraceous
- beggiatoaceous
- caesalpiniaceous
- calamariaceous
- caryocaraceous
- caryophyllaceous
- centrolepidaceous
- chenopodiaceous
- cladochytriaceous
- coleochaetaceous
- columelliaceous
- coriariaceous
- crossosomataceous
- delesseriaceous
- desmarestiaceous
- diapensiaceous
- dipterocarpaceous
- elaeocarpaceous
- entomophthoraceous
- eriocaulaceous
- escalloniaceous
- eupatoriaceous
- euphorbiaceous
- flagellariaceous
- globulariaceous
- grossulariaceous
- hamamelidaceous
- hippocrateaceous
- hydrocaryaceous
- hydrocharidaceous
- hydrocharitaceous
- hymenophyllaceous
- interfoliaceous
- jungermanniaceous
- laboulbeniaceous
- laminariaceous
- lardizabalaceous
- melanconiaceous
- nidulariaceous
- oedogoniaceous
- ophioglossaceous
- peridiniaceous
- perisporiaceous
- peronosporaceous
- podostemonaceous
- polemoniaceous
- polypodiaceous
- pontederiaceous
- prionodesmaceous
- protosiphonaceous
- rhodymeniaceous
- rivulariaceous
- sarraceniaceous
- sclerodermataceous
- scrophulariaceous
- scytonemataceous
- selaginellaceous
- sigillariaceous
- sphaerococcaceous
- suprafoliaceous
- teleodesmaceous
- ustilaginaceous
- valerianaceous
- vallisneriaceous
