Here's what rhymes with pyrotechnically.
technically Words that almost rhyme with pyrotechnically
metrically sceptically electrically pathetically charitably majestically skeptically aseptically theoretically diametrically hermetically veritably apathetically ecumenically indelicately inextricably residency effeminacy hesitancy hesitantly magnetically parenthetically eccentrically antiseptically effeminately egocentrically photoelectrically reticently geocentrically hydroelectrically ineligibly intelligently sympathetically negligently concentrically infinitesimally unsympathetically sacrilegiously electromagnetically