Words That Rhyme With "Colloquial" :
3 syllables:
4 syllables:
baronial, binomial, custodial, exequial, microbial, monomial, obsequial, parochial, trinomial
5 syllables:
antimonial, ceremonial, diarthrodial, enarthrodial, matrimonial, multinomial, polynomial, pseudopodial, testimonial, ventriloquial