Here's what rhymes with silical.
umbilical Words that almost rhyme with silical
lyrical empirical physical cynical finical critical mystical atypical inimical rhythmical whimsical encyclical tricycle arrhythmical elliptical rabbinical nonphysical sophistical untypical statistical analytical metaphysical cylindrical logistical uncritical apolitical subliminal parasitical egoistical overcritical indivisible hypocritical egotistical preclinical supercritical archetypical hypercritical noncritical unpolitical geopolitical stereotypical prototypical impermissible nonpolitical noncriminal sociopolitical psychoanalytical