Words That Rhyme With "Primulaceous" :
2 syllables:
brushless, Cassius, cautious, duchess, gracious, nauseous, precious, Russia's, spacious, specious, Ushas, vicious
3 syllables:
ambitious, Araceous, archduchess, astucious, atrocious, audacious, auspicious, autecious, autoecious, bulbaceous, byssaceous, Cactaceous, capacious, capricious, ceraceous, chartaceous, Cistaceous, Cornaceous, crustaceous, curvaceous, dioecious, drupaceous, edacious, fabaceous, facetious, factitious, Fagaceous, feracious, ferocious, fictitious, flagitious, flirtatious, fugacious, gemmaceous, glumaceous, herbaceous, incautious, judicious, Juncaceous, lardaceous, Lauraceous, loquacious, lubricious, Lythraceous, Malvaceous, mendacious, minacious, monecious, monoecious, Moraceous, mordacious, Musaceous, Myrtaceous, nutritious, officious, palmaceous, paroecious, pernicious, porraceous, precautious, precocious, predaceous, predacious, propitious, pugnacious, pumiceous, rapacious, Rhamnaceous, rosaceous, Rutaceous, sagacious, sebaceous, seditious, sequacious, sericeous, setaceous, spadiceous, spathaceous, spinaceous, suspicious, synoecious, Taxaceous, tenacious, testaceous, theaceous, tophaceous, trioecious, tufaceous, tuffaceous, ulmaceous, ungracious, veracious, vexatious, vinaceous, vivacious, voracious
4 syllables:
Acanthaceous, acinaceous, adscititious, adventitious, alliaceous, alsinaceous, alutaceous, amentaceous, apiaceous, arboraceous, arenaceous, asteraceous, avaricious, brassicaceous, Burseraceous, butyraceous, carbonaceous, cementitious, cineritious, contumacious, coriaceous, Cycadaceous, cylindraceous, Cyperaceous, Dipsacaceous, disputatious, efficacious, ericaceous, erinaceous, expeditious, farinaceous, foliaceous, frumentaceous, furfuraceous, gallinaceous, graminaceous, heteroecious, inauspicious, incapacious, injudicious, inofficious, iridaceous, Juglandaceous, lamiaceous, lateritious, liliaceous, membranaceous, meretricious, Mimosaceous, obreptitious, oleaceous, olivaceous, Onagraceous, orchidaceous, ostentatious, overcautious, papyraceous, pectinaceous, perspicacious, Piperaceous, proteinaceous, ramentaceous, repetitious, Resedaceous, Sapindaceous, saponaceous, Sapotaceous, sarmentaceous, scoriaceous, semipostal, semiprecious, Smilacaceous, solanaceous, stercoraceous, Styracaceous, subreptitious, superstitious, suppositious, surreptitious, Tiliaceous, unpropitious, unsuspicious, Urticaceous, Verbenaceous
5 syllables:
ambrosiaceous, androdioecious, andromonoecious, Apocynaceous, araliaceous, artifactitious, arundinaceous, Balsaminaceous, berberidaceous, Bignoniaceous, boraginaceous, Bromeliaceous, Capparidaceous, Cucurbitaceous, diatomaceous, Euphorbiaceous, excrementitious, Gentianaceous, Geraniaceous, gynodioecious, gynomonoecious, helianthaceous, holosericeous, inefficacious, Lobeliaceous, Loganiaceous, Magnoliaceous, Malpighiaceous, margaritaceous, Menispermaceous, Nyctaginaceous, orobanchaceous, Papaveraceous, Passifloraceous, Plumbaginaceous, Rafflesiaceous, Simaroubaceous, Sterculiaceous, supposititious
6 syllables:
amaryllidaceous, Anacardiaceous, Asclepiadaceous, Caesalpiniaceous, chenopodiaceous, Dipterocarpaceous, Hamamelidaceous, interfoliaceous, Laminariaceous, papilionaceous, Polemoniaceous, Sarraceniaceous, Scrophulariaceous, Valerianaceous