Here's what rhymes with omniscious.
Words that almost rhyme with omniscious
oblivious lascivious forsythias serious hideous amphibious bilious ligneous tibias imperious insidious vitreous weariness invidious pitiless giddiness chilliness silliness riskiness milkiness bitchiness tipsiness wittiness prissiness hilliness tinniness mysterious affiliates dizziness initiates delirious fastidious ignominious punctilious miscreants prettiness stickiness consanguineous filthiness conciliates grittiness silkiness trickiness incipience pithiness friskiness skinniness bleariness resilience lineaments flimsiness percipience princeliness skimpiness experience recipients deleterious supercilious propitiates inexperience disaffiliates