Words That Rhyme With "Semiprecious" :
2 syllables:
cautious, essence, Lesseps, nauseous, nescience, Nessus, precious, spacious, specious, Ushas, vicious, Wessex
3 syllables:
ambitious, Araceous, astucious, audacious, auspicious, autecious, autoecious, bulbaceous, byssaceous, Cactaceous, capacious, ceraceous, chartaceous, chylaceous, Cistaceous, contentious, Cornaceous, crustaceous, curvaceous, delicious, dioecious, dissentious, drupaceous, edacious, fabaceous, facetious, factitious, Fagaceous, fallacious, feracious, ferocious, fictitious, flagitious, flirtatious, florescence, frondescence, fugacious, gemmaceous, glumaceous, hellacious, herbaceous, incautious, infectious, judicious, Juncaceous, lactescence, lardaceous, Lauraceous, lilaceous, loquacious, malicious, Malvaceous, mendacious, minacious, monecious, monoecious, Moraceous, mordacious, Musaceous, Myrtaceous, officious, palmaceous, paroecious, pernicious, porraceous, precautious, precocious, predaceous, predacious, pretentious, propitious, pubescence, pumiceous, quiescence, quintessence, Rhamnaceous, rosaceous, Rutaceous, sagacious, salacious, schorlaceous, sebaceous, seditious, senescence, sententious, sequacious, sericeous, setaceous, siliceous, silicious, spadiceous, spathaceous, spinaceous, suspicious, synoecious, Taxaceous, tenacious, tendencious, tendentious, testaceous, theaceous, tophaceous, trioecious, tufaceous, tuffaceous, tumescence, ulmaceous, veracious, vexatious, vinaceous, virescence, vivacious, voracious, Walesa's
4 syllables:
Acanthaceous, acinaceous, acquiescence, adolescence, adscititious, adventitious, alliaceous, alsinaceous, alutaceous, amentaceous, ampullaceous, amylaceous, apiaceous, arboraceous, arenaceous, argillaceous, asteraceous, avaricious, Betulaceous, brassicaceous, Burseraceous, butyraceous, calorescence, carbonaceous, cementitious, cineritious, coalescence, conscientious, contumacious, convalescence, coriaceous, corollaceous, Crassulaceous, Cycadaceous, Cyperaceous, decalescence, defervescence, deliquescence, detumescence, Dipsacaceous, disputatious, effervescence, efficacious, efflorescence, ericaceous, erinaceous, evanescence, expeditious, farinaceous, fluorescence, foliaceous, frumentaceous, furfuraceous, gallinaceous, graminaceous, heteroecious, incandescence, incapacious, inflorescence, infructescence, injudicious, inofficious, intumescence, iridaceous, iridescence, Juglandaceous, juvenescence, lamiaceous, lateritious, liliaceous, luminescence, membranaceous, Mimosaceous, oblivescence, obreptitious, obsolescence, oleaceous, olivaceous, opalescence, orchidaceous, ostentatious, overcautious, papyraceous, pectinaceous, perspicacious, phosphorescence, Piperaceous, plumulaceous, Primulaceous, proteinaceous, ramentaceous, recrudescence, repetitious, Resedaceous, Sapindaceous, saponaceous, Sapotaceous, sarmentaceous, scoriaceous, semipostal, Smilacaceous, solanaceous, stercoraceous, strobilaceous, Styracaceous, subreptitious, superstitious, suppositious, surreptitious, Tiliaceous, unpretentious, unpropitious, unsuspicious, Urticaceous, Verbenaceous, violaceous
5 syllables:
ambrosiaceous, Amygdalaceous, androdioecious, andromonoecious, Apocynaceous, araliaceous, artifactitious, arundinaceous, Balsaminaceous, berberidaceous, Bignoniaceous, boraginaceous, Bromeliaceous, Campanulaceous, Capparidaceous, Convolvulaceous, Cucurbitaceous, diatomaceous, Euphorbiaceous, excrementitious, Gentianaceous, Geraniaceous, gynodioecious, gynomonoecious, helianthaceous, holosericeous, Hydrophyllaceous, inefficacious, Lobeliaceous, Loganiaceous, Magnoliaceous, Malpighiaceous, margaritaceous, Menispermaceous, Nyctaginaceous, orobanchaceous, Papaveraceous, Passifloraceous, Plumbaginaceous, Polygalaceous, Rafflesiaceous, ranunculaceous, Simaroubaceous, Sterculiaceous, supposititious, Zygophyllaceous
6 syllables:
amaryllidaceous, Anacardiaceous, Asclepiadaceous, bioluminescence, Caesalpiniaceous, caryophyllaceous, chemiluminescence, chenopodiaceous, Dipterocarpaceous, Hamamelidaceous, interfoliaceous, Laminariaceous, papilionaceous, photoluminescence, Polemoniaceous, Sarraceniaceous, Scrophulariaceous, thermoluminescence, thermophosphorescence, triboluminescence, Valerianaceous