English MCQs, Antonyms MCQsAntonym of FRIVOLOUS is _____________? Posted on April 17, 2021 by Rana Amir KhanA. Trivial B. Silly C. Petty D. WiseShare this:Click to share on Twitter (Opens in new window)Click to share on Facebook (Opens in new window)Click to share on WhatsApp (Opens in new window)Click to share on Pinterest (Opens in new window)Click to share on LinkedIn (Opens in new window)