facetious

/fəˈsiːʃəs फ़ˈसीशस्‌/ adj.

trying to be amusing about a subject at a time that is not appropriate so that other people become annoyed अनुपयुक्त समय पर अनुचित रूप से हँसी-मज़ाक़ वाला; हँसोड़

He kept making facetious remarks during the lecture.

▶ facetiously adv. मज़ाक़िया तौर पर