From Longman Dictionary of Contemporary Englishlevitylev‧i‧ty /ˈlevəti/ noun [uncountable] formalMAKE FUN OF lack of respect or seriousness when you are dealing with something serious OPP gravity
Examples from the Corpus
levity• They'd had a long, hard, cold morning's work and levity took over.• The woman was lively, even bawdy, but there was something reserved, steely, behind her levity.• This was probably not the whole reason; for his levity and jocularity were well tuned for making enemies.• Dr. Watkins brought some much-needed levity into his lecture on economic theory.• It was a moment of levity amid tough trade negotiations.• His stepbrother, half-scandalized and wholly impressed by Herbert's levity, never forgot the episode.• The captain looked shocked at this levity but complied.• But I must resist the temptation to treat so serious a matter with levity.Origin levity (1500-1600) Latin levitas, from levis “light” 