adjective of or constituting a great but unspecified number; numberless.The city’s myriad lights competed with the stars.Myriad petals dropped from the trees. See the full entry

adjective of, concerning, coming from, or marked by the presence of glaciers or other large ice masses.a glacial era See the full entry

adjective unworthy of serious consideration or merit; trivial or silly.His father had worked hard for a living and could not tolerate his son engaging in frivolous pursuits.The committee rejected the recommendation as…

adjective vigorously enthusiastic or happy; high-spirited.She was exuberant upon hearing that she’d been accepted into the honors program.The soccer fans were exuberant after the team’s big win. See the full entry